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Class Information
Number: 33/296
Name: Geometrical instruments > Straight-line light ray type > Rod or target > Extensible rod sections
Description: Device wherein the rod comprises a plurality of slideably or telescopically connected sections which may be longitudinally adjusted relative to each other.


Patents under this class:

Patent Number Title Of Patent Date Issued
7441339 Measuring apparatus Oct. 28, 2008
7257903 Leveling rod with stencil Aug. 21, 2007
7066276 Method and apparatus for excavating earth to a desired depth Jun. 27, 2006
6990745 Trailer hitch alignment system Jan. 31, 2006
6834839 Prism pole stand with clamping device and assembly Dec. 28, 2004
6772526 Surveying pole Aug. 10, 2004
6760974 Height determining instrument for poured floors, and method Jul. 13, 2004
6711826 Pole section for surveying equipment Mar. 30, 2004
6688012 Surveying pole with telescoping sections Feb. 10, 2004
6662458 Leveling rod and leveling method Dec. 16, 2003
6588868 Marking apparatus Jul. 8, 2003
6513259 Slide assembly with adjustable sliding resistance Feb. 4, 2003
6502321 Pole section for surveying equipment Jan. 7, 2003
6209210 Leveling rod Apr. 3, 2001
6085434 Telescoping measuring device Jul. 11, 2000
6076267 Leveling pole Jun. 20, 2000
6052981 Extendable arm Apr. 25, 2000
5915810 Telescoping measuring stick with air damped closure and frictional locking Jun. 29, 1999
5829147 Apparatus for applying marks to surfaces Nov. 3, 1998
5687486 Grade rod Nov. 18, 1997
5685082 Adjustable grade stick and method of using same Nov. 11, 1997
5566460 Telescopic measuring pole Oct. 22, 1996
5255441 Prism pole for a surveying system Oct. 26, 1993
5070620 Extensible and retractable rod Dec. 10, 1991
4899452 Stepping staff Feb. 13, 1990
4820041 Position sensing system for surveying and grading Apr. 11, 1989
4662077 Combined story pole and elevation rod May. 5, 1987
4621431 Telescoping device with stop mechanism Nov. 11, 1986
4567669 Blue top setting device Feb. 4, 1986
4523385 Latch Jun. 18, 1985
4471532 Direct reading grade rod with a sliding scale Sep. 18, 1984
4458425 Surveyor's rod device Jul. 10, 1984
4356637 Device for holding a surveyor's range pole Nov. 2, 1982
4345382 Contractor's grade rod apparatus and procedure for setting and checking grades Aug. 24, 1982
4318228 Leveling pole Mar. 9, 1982
4240208 Hand-held laser surveying rod Dec. 23, 1980
4228590 Leveling pole Oct. 21, 1980
4192076 Device for holding a surveyor's instrument Mar. 11, 1980
4060909 Surveying rod Dec. 6, 1977
4031633 Scale for use in measuring and straightening damaged vehicles in a so-called vehicle alignment apparatus Jun. 28, 1977



 
 
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