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Class Information
Number: 33/123
Name: Geometrical instruments > Area integrators > Electrical
Description: Area integrators having electrically operated mechanism.

Patents under this class:

Patent Number Title Of Patent Date Issued
6346680 Weight and form sensing apparatus and a packaging machine using the same Feb. 12, 2002
6188331 Tactile sensor and method for determining a shear force and slip with such a tactile sensor Feb. 13, 2001
5990809 Underwater surveying system Nov. 23, 1999
5875556 Apparatus and method for measuring a figure Mar. 2, 1999
5708592 Measuring apparatus for figures Jan. 13, 1998
5605099 Maintenance vehicle and method for measuring and maintaining the level of a railroad track Feb. 25, 1997
5515299 Device for finding centroid coordinates of figures May. 7, 1996
5115569 Coordinate reading and marking device May. 26, 1992
4617740 Measuring device for a figure Oct. 21, 1986
4486890 Control arrangement for an acreage counter Dec. 4, 1984
4483076 Ground contact area measurement device Nov. 20, 1984
4339972 Method and apparatus for volumetric partitioning of rod-like material Jul. 20, 1982
4233742 Apparatus for area measurement of elongated strips Nov. 18, 1980
4229799 Method and apparatus for measuring area traversed by vehicular implement Oct. 21, 1980
4156970 Apparatus for area measurement of elongated strips Jun. 5, 1979
4144576 Devices for measuring planar area within a closed curved path Mar. 13, 1979
4058712 Acre counter Nov. 15, 1977
3950854 Method and apparatus for measuring area under a curve Apr. 20, 1976

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