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Class Information
Number: 33/780
Name: Geometrical instruments > Distance measuring > Of length by rolling contact > Implement > With digital indicator
Description: Subject matter wherein the distance is shown in numerals.

Sub-classes under this class:

Class Number Class Name Patents
33/781 Including handle for implement 19

Patents under this class:

Patent Number Title Of Patent Date Issued
8516708 Rolling ruler Aug. 27, 2013
8310227 Electronic measuring wheel Nov. 13, 2012
6889444 Antler scoring system May. 10, 2005
6574882 Pen type curve length measuring apparatus having caster Jun. 10, 2003
6249987 Distance measuring device Jun. 26, 2001
6199292 Electromechanical dimensioning device Mar. 13, 2001
6122834 Combination framing and speed square Sep. 26, 2000
5943785 Curve length measuring apparatus having caster Aug. 31, 1999
5884240 Apparatus for measuring and recording a tree characteristic Mar. 16, 1999
5780846 Device in pen form with means for measuring a length Jul. 14, 1998
5560119 Opto-mechanical instrument to accurately measure linear distances on flat or curved surfaces with incrementing Oct. 1, 1996
5161313 Tracking, measuring and calculating instrument for the determination of lengths, areas, peripheries and volumes Nov. 10, 1992
5067249 Map scaling instrument Nov. 26, 1991
5035064 Linear measuring devices Jul. 30, 1991
4989342 Actuator for a counter on a distance measuring device Feb. 5, 1991
4970802 Wheeled measuring device Nov. 20, 1990
4967484 Method of and apparatus for measuring distances Nov. 6, 1990
4914831 Rotation detecting apparatus Apr. 10, 1990
4760647 Linear measuring apparatus Aug. 2, 1988
4700484 Diameter measuring device Oct. 20, 1987
4242804 Universal digital converter for drafting machines Jan. 6, 1981
4163323 Length measuring devices Aug. 7, 1979

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