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Class Information
Number: 33/370
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Level or plumb, terrestrial gravitation responsive > Work, or workman, attaching means
Description: Device including means adapted for attachment to a workpiece or to a person handling a workpiece.










Sub-classes under this class:

Class Number Class Name Patents
33/371 Requiring no modification of the work 115


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8402667 Clamp level Mar. 26, 2013
8061051 Clamping level tool Nov. 22, 2011
8056248 Digit level devices and methods Nov. 15, 2011
7987608 Grinding angle bubble level jig Aug. 2, 2011
7614662 Pipe fitting with orientation indicator Nov. 10, 2009
7370431 Pipefitting instruments and related methods May. 13, 2008
7367129 Hand-held laser level with retractable adhesive-type retention feature May. 6, 2008
7360315 Poured concrete column alignment and plumbing tool Apr. 22, 2008
7278218 Laser line generating device with swivel base Oct. 9, 2007
7243431 Trailer hitch alignment device Jul. 17, 2007
7200947 Block lock/leveler Apr. 10, 2007
7182148 Tool with motion and orientation indicators Feb. 27, 2007
7159328 Measurement gauge incorporating a level Jan. 9, 2007
7117606 Pocket-sized leveling tool Oct. 10, 2006
7076884 Apparatus and method to determine pinion angle of drive train Jul. 18, 2006
6981330 Multi-axis installable and adjustable level Jan. 3, 2006
6976316 Magnetic plumb bob holder Dec. 20, 2005
6931740 Line generating device Aug. 23, 2005
6918187 Multi plane plumb level Jul. 19, 2005
6834435 Multi-purpose leveling device Dec. 28, 2004
6818824 Wiring device ganging tool Nov. 16, 2004
6810592 Adjustable door jamb setting jig Nov. 2, 2004
6796045 Level with retractable hanger structure Sep. 28, 2004
6739062 Universal angle means May. 25, 2004
6732441 Leveling tool May. 11, 2004
6711827 Conduit bending guide Mar. 30, 2004
6665962 Shoe with level and method for determining grade Dec. 23, 2003
6568095 Magnetic torpedo level May. 27, 2003
6493955 Instrument for obtaining a reference line Dec. 17, 2002
6466871 Method for calibrating and verifying the attitude of a compass Oct. 15, 2002
6438854 Center line marking apparatus Aug. 27, 2002
6430824 Screed system for walls Aug. 13, 2002
6158134 Equipment leveling device Dec. 12, 2000
6131298 Self-supporting level measurement device Oct. 17, 2000
6070336 Framing tool Jun. 6, 2000
6026581 Pocket level with optional magnet Feb. 22, 2000
5937528 Tilt sensor, mask and coat holder Aug. 17, 1999
5887355 Attachment for a power saw to make plumb cuts Mar. 30, 1999
5820476 Golf putter leveling system Oct. 13, 1998
5819425 Level clamp Oct. 13, 1998
5815937 Level adapter assembly Oct. 6, 1998
5806196 Method and apparatus for aligning a towed vehicle with a towing vehicle Sep. 15, 1998
5799404 Level clamp Sep. 1, 1998
5768790 Angle indicator for pipe benders Jun. 23, 1998
5749151 Level mount and method of measuring the level of a member May. 12, 1998
5697161 Level indicating device for a vehicle headlamp Dec. 16, 1997
5692310 Attachment for a power saw to make plumb cuts Dec. 2, 1997
5680707 Ladder inclinometer Oct. 28, 1997
5625956 Level indicator for child seat May. 6, 1997
5581900 Level clamp Dec. 10, 1996

1 2










 
 
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