Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Load children
F16
ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
Load children
F16B
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
Load children
23/00
Specially shaped; nuts or; heads of bolts or screws for rotations by a tool
Load children Filter patents View analytics View as hierarchy
F16B23/0069
with holes to be engaged with corresponding pins on the tool or protruding pins to be engaged with corresponding holes on the tool
Filter patents View analytics View as hierarchy