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Class Information
Number: 33/372
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Level or plumb, terrestrial gravitation responsive > Work, or workman, attaching means > Requiring no modification of the work > Elastic bias type clamping
Description: Device wherein the attaching means includes an elastic member exerting a yieldable clamping force upon the workpiece or workman.










Patents under this class:

Patent Number Title Of Patent Date Issued
8402667 Clamp level Mar. 26, 2013
7908753 Hands-free level Mar. 22, 2011
7797847 Hands-free level Sep. 21, 2010
7775899 Method and apparatus for executing repeatable golf swings Aug. 17, 2010
7739804 Hands-free long level Jun. 22, 2010
7669342 Level for a geomatics target device Mar. 2, 2010
7562462 Hands-free level indicating device Jul. 21, 2009
7555842 Line leveling tool and method of use Jul. 7, 2009
7059059 Combination level, plumb tool with single-hand engagement Jun. 13, 2006
6466871 Method for calibrating and verifying the attitude of a compass Oct. 15, 2002
6439524 Measuring head holder Aug. 27, 2002
6131298 Self-supporting level measurement device Oct. 17, 2000
5977922 Satellite antenna alignment device Nov. 2, 1999
5819425 Level clamp Oct. 13, 1998
5815937 Level adapter assembly Oct. 6, 1998
5799404 Level clamp Sep. 1, 1998
5749151 Level mount and method of measuring the level of a member May. 12, 1998
5632484 Bubble level device, attachable to the grip of a golf club May. 27, 1997
5581900 Level clamp Dec. 10, 1996
5522146 Level marker Jun. 4, 1996
5479714 Headlamp leveling apparatus Jan. 2, 1996
5408391 Level indicating device for a vehicle headlamp Apr. 18, 1995
5309645 Combination plumb or level and height setting instruments May. 10, 1994
4976040 Post level apparatus Dec. 11, 1990
4970796 Self supporting spirit level tool Nov. 20, 1990
4908949 Air-bubble level for portable tools Mar. 20, 1990
4829676 Hands-free level indicating device May. 16, 1989
4785544 Spirit level accessory for the electric drill Nov. 22, 1988
4745688 Trueing device May. 24, 1988
4739561 Door leveling device Apr. 26, 1988
4733475 Extension level apparatus Mar. 29, 1988
4580350 Lie level Apr. 8, 1986
4400889 Quick-clamp gauge for monitoring pipe bending Aug. 30, 1983
4066232 Clamp-on level holder Jan. 3, 1978











 
 
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