A kit comprising at least a first erasable writing element wherein the erasable writing elements each having a surface adapted for writing upon with an erasable writing implement, and a non-adhesive surface for interconnecting to an existing solid surface. The kit further comprises a second element which can be used independently of the first erasable writing element or in combination thereof. The elements of the kit typically comprise a pliant layer having micro-suction elements adapted for removable interconnection to an existing structure or surface, and wherein a first element can be interconnected to the surface of a second element.

There is provided a workbook having a plurality of pages. Each page having a writing surface suitable for writing with a dry erasable pen and allowing erasure of the writing. The writing surface is formed on a substrate by applying layers of film. A particular embodiment uses two film layers. A first layer of water-based UV film is covered with a second layer of UV film having a gloss finish.

There is provided a workbook having a plurality of pages. Each page having a writing surface suitable for writing with a dry erasable pen and allowing erasure of the writing. The writing surface is formed on a substrate by applying layers of film. A particular embodiment uses two film layers. A first layer of water-based UV film is covered with a second layer of UV film having a gloss finish.

Mobile training labs for training gas technicians are disclosed. The mobile training labs can include a towable trailer comprising a body having a plurality of walls at least partially defining a hollow interior, an axle having at least two wheels disposed thereon to support the body, and a tow hitch. The mobile training labs can also include at least one training bay connected to the towable trailer such that the at least one training bay is configured to be accessed from an exterior of the towable trailer. The at least one training bay can include a work bench and a mock service entrance that is representative of a commercial or residential gas service entrance.

Mobile training labs for training gas technicians are disclosed. The mobile training labs can include a towable trailer comprising a body having a plurality of walls at least partially defining a hollow interior, an axle having at least two wheels disposed thereon to support the body, and a tow hitch. The mobile training labs can also include at least one training bay connected to the towable trailer such that the at least one training bay is configured to be accessed from an exterior of the towable trailer. The at least one training bay can include a work bench and a mock service entrance that is representative of a commercial or residential gas service entrance.

An apparatus for a mobile floor standing structure with a wheeled base, attached to a dry-erase board is described. The dry erase board can be secured to the stand at a vertical orientation to give rise to a vertically standing writable dry-erase board. Alternatively, the dry-erase board being pivotably oriented form a vertical position to a horizontal position to yield into a writable dry erase board in a table configuration. The wheeled base adds ease in maneuverability and portability of the apparatus.

An apparatus for a mobile floor standing structure with a wheeled base, attached to a dry-erase board is described. The dry erase board can be secured to the stand at a vertical orientation to give rise to a vertically standing writable dry-erase board. Alternatively, the dry-erase board being pivotably oriented form a vertical position to a horizontal position to yield into a writable dry erase board in a table configuration. The wheeled base adds ease in maneuverability and portability of the apparatus.

Conventional whiteboards or chalkboards on which writing is effected using Dry-Erase or chalk markers are enabled for digital conversion of the writing into the digital domain. An indoor positioning subsystem determines the absolute position of a marker with a dry-erase or another conventional writing tip within a local coordinate system to track the location of the marker on the board. Ultra wide band (UWB) is an example technology that may be used for this purpose. An inertial sensor in the marker captures sensor data generated by handwriting by sensing the movement of the marker, essentially tracking the relative positioning and motion of the handwriting. The absolute position and relative positions are then processed to generate digital handwriting which may be refined using deep learning subsystem(s) for handwriting recognition and classification for the data captured by the inertial sensor to determine the most appropriate character or shape of the writing.

Disclosed is a coating composition suitable for coating onto a wall or other substrate to yield a dry-erase coating. The composition may be prepared by reacting an excess amount of an aminosilane with a carbonate in aqueous media to yield a silylurethane, introducing an epoxysilane, and allowing the epoxysilane to react with the aminosilane to yield an aminodisilane. This reaction will result in a coating composition that comprises the silylurethane and the aminodisilane. The aqueous mixture of the silylurethane and the aminodisilane together constitute a coating composition that, upon curing, forms a dry-erase coating.

A self-adhesive and reusable support for notes is disclosed. The support comprises a flat laminar body (1-1-1) that in turn comprises a first flat surface (10) and a second flat surface (11) opposite from the first surface. The flat laminar body comprises micro suction cups (3) distributed in a staggered pattern on the first flat surface and a writable surface (4) on the second surface. The self-adhesive and reusable support for notes is manufactured from opaque polymeric calendered vinyl. The support is reusable, meaning that it can be used as many times as desired, without the risk of losing the self-adhesive properties thereof even when the location thereof is constantly changed, as well as writing with marker or highlighter and erasing it again. Due to the nature thereof, it is especially suitable for use in the Kanban method.