A fitting or measuring square with measuring indicia configured with a primary rectangular form and triangle collinear with one side of the primary rectangle and a secondary rectangle partially collinear with the triangle whereby the measuring square is provided with multi function indicia.

Smart Scale Ruler is an electronic architect's scale having a triangular shaped ruler body. The Smart Scale Ruler has a changeable electronic display for displaying a custom or the desired scale of any unit of length, for a document or plan. A set of depressible buttons function as the inputs for the value of the reference point a user wishes to base the custom scale off of, as well as different settings for the device, in order to display the correct scale on the electronic display.

A measuring instrument having an antenna element coupled to the measuring instrument is disclosed. The measuring instrument includes a planar substrate with an antenna connector coupled to the planar substrate and further coupled to the antenna element. At least a portion of the planar instrument comprises indicia wherein said indicia collectively forms the measuring instrument.

A measurement device includes: a probe part including a probe configured to measure a surface of an object to be measured and is attached so as to swing around a swing center according to a shape of the surface of the object to be measured; a scale configured to measure displacement by swinging of the probe part; a scale head configured to read a scale mark of the scale; and an arm part to which the probe part is attached, the arm part is attached so as to swing around the swing center integrally with the probe part, and the scale is attached to the arm part. When thermal expansion coefficients of the probe part, the arm part and the scale are , and respectively, the measurement device satisfies a condition of (+)1/2(+)+1/2.

A measuring ruler, tape or other instrument having a straight edge located along at least one length of the ruler. The ruler has a first surface having a background color, and a second opposed surface. The ruler also has a set of spaced apart indicia located on the first surface along the at least one length. The indicia are oriented perpendicular to the straight edge. The width of the first indicium and last indicium of a whole number unit measurement length appear half as wide as the width of all remaining fractional indicia.

A measuring board having a simple structure is to be provided. A measuring board includes a main body having a foldable structure, and the main body includes a placement part on which a foot is placed and that includes a measurement marker, a wall part provided adjacent to the placement part and configured to position a heel during measurement, and supporting structures and that support the wall part. With such a configuration, a measuring board having a simple structure can be provided.

A mask size gauge for selecting a size of a mask in accordance with a distance in a height direction between an upper reference part in an upper portion of a face of a wearer, and a lower reference part in a lower portion, includes: a reference position indicating portion indicating that the reference position indicating portion is to be placed at a height position of the upper reference part on an outer lateral side of an eye of the wearer; and a size indicating portion that is located at a position which is closer to a middle of the face than the reference position indicating portion, and that indicates the size of the mask according to a height position of the lower reference part.

A device for use with orthopedic surgical fixation devices, and more particularly, to an alignment gauge for use with an external fixation system comprising one or more support members (rings, plates, etc.) connected to one or more bone members wherein a plurality of struts of adjustable length support and/or connect the one or more support members. The alignment gauge indicating to a user, such as a surgeon, the degree of translational offset between one bone member and a center point of at least one of the support members in at least one of an anterior-posterior or medial-lateral plane.

A device for measuring, marking and cutting material, the device formed of a clear, transparent, translucent or tinted substrate that is either rigid, semi-rigid, flexible or bendable and having in one implementation, a plurality of first and second lines are formed on the substrate to define an unbroken, continuous channel in which a plurality of windows are formed to include a grid line segment to aid in aligning the device with the underlying material. Alternatively or in addition, the device includes one or more visually perceptible invisible lines bounded by opposing line segment pairs and terminal ends to aid in viewing and aligning with underlying material.

A device for measuring and/or marking height is disclosed. The device comprises a rear section, side sections coupled to the rear section. Further, the device comprises a front section coupled to the side sections. The side sections comprise a rod receiving section. Further, the device comprises a rod coupled to the rod receiving sections. The device comprises a paper wound onto the rod, in which one end is coupled to the rod. The device is coupled to a wall or a door at a height from the ground and free end of paper is pulled down to mark height of a user and the paper is made to retrieve into the device when not in use.