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Class Information
Number: 33/1R
Name: Geometrical instruments > Miscellaneous

Sub-classes under this class:

Class Number Class Name Patents
33/1A Aerial photo 17
33/1AP Angle polysection 9
33/1N Angular measurement 263
33/1PT Angular position transducer 365
33/1F Article subdividing 12
33/1CF Character forming 1
33/1K Copy aids and perspective drawing 52
33/1C Curve and chart analysis 45
33/1E Dip and strike 13
33/1H Earth 110
33/1D Indexing and verniers 21
33/1BB Inspection 84
33/1G Layout 107
33/1DD Light direction 16
33/1LE Line engaging 70
33/1MP Multipolar 22
33/1L Optical readout 20
33/1B Printed sheet 115
33/1SP Radius and spiral 2
33/1Q Railroad 76
33/1CC Remote point locating 47
33/1HH Seismic 14
33/1SB Simulating calculators 38
33/1P Sonic wave 3
33/1S Statistical measurements 5
33/1AA Tables-layout 15
33/1T Theodolite-optical readout 13
33/1V Volume measurement 40
33/1M X-y motion 547

Patents under this class:

Patent Number Title Of Patent Date Issued
8487578 Position sensing device and method for implementing failsafe control on position sensing system including the same Jul. 16, 2013
8047709 Method and system for interface detection Nov. 1, 2011
7493231 Process for determining the actual position of a rotation axis of a transportation mechanism Feb. 17, 2009
7467475 Leveling device Dec. 23, 2008
6416082 Book cover and book binding system using the book cover Jul. 9, 2002
5293693 Vacuum valve design for die casting Mar. 15, 1994
4903412 Orthopedic pillow and sizing kit therefor Feb. 27, 1990
4823476 Method and apparatus for measuring physical attributes of a human body Apr. 25, 1989
4779347 Method of determining the shape of a flat fabric pattern for application to a general curved surface Oct. 25, 1988
4583298 Auto calibration method suitable for use in electron beam lithography Apr. 22, 1986
4408848 Apparatus for indicating a line and for producing and visually displaying an image of a line indicator Oct. 11, 1983
4389782 Determination of the extent of a decubitus ulcer Jun. 28, 1983
4139933 Method for fabricating a scanning electron microscope micrometer scale Feb. 20, 1979
4104803 Direction finding device and guidance system Aug. 8, 1978
4090300 Ornamental fabric May. 23, 1978
4068381 Scanning electron microscope micrometer scale and method for fabricating same Jan. 17, 1978
4044470 Collar locating apparatus Aug. 30, 1977
4034986 Game involving estimation of spatial relationships Jul. 12, 1977
3959885 Trolling depthometer Jun. 1, 1976
3940997 Apparatus and method for measuring angle of repose Mar. 2, 1976

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