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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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