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Class Information
Number: 81/176.1
Name: Tools > Wrench, screwdriver, or driver therefor > Spanner
Description: Wrench including two spaced work engaging portions, one of which comprises a projection or recess which is adapted to engage a cooperating recess or projection, respectively, on the peripheral or an end face of the work.










Sub-classes under this class:

Class Number Class Name Patents
81/176.15 Having means to engage work axially 169
81/176.3 Having relatively movable jaws 44


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8136427 Wrenches Mar. 20, 2012
8113094 Emergency responder rescue tool Feb. 14, 2012
7874034 Bowring firefighter tool Jan. 25, 2011
7712400 Pretensioning tool for an eccentric tensioning device May. 11, 2010
7698971 Foot peg engaging tool Apr. 20, 2010
7631582 Wrench with anti-slipping function Dec. 15, 2009
7562605 Drain and strainer wrench Jul. 21, 2009
7380483 Wrench with anti-slipping function Jun. 3, 2008
7296501 Limited access building connection Nov. 20, 2007
7231853 Tree step driving tool Jun. 19, 2007
7210381 Locknut tightening construction May. 1, 2007
7197967 Locknut pliers Apr. 3, 2007
7168343 Limited access building connection Jan. 30, 2007
7107880 Conduit locknut wrench Sep. 19, 2006
7069822 Movable wrench handle assembly Jul. 4, 2006
7024967 Ratchet wheel structure Apr. 11, 2006
6997085 Threaded-fastener wrenching structure, threaded fastener and wrenching tool Feb. 14, 2006
6978703 Cam gear holding and turning wrench Dec. 27, 2005
6968758 Wrench adaptor for driving screw driver bits Nov. 29, 2005
6938523 Cleanout cap wrench Sep. 6, 2005
6912936 Holding tool and method of use Jul. 5, 2005
6895838 Apparatus system and method for installing a strainer lock May. 24, 2005
6854364 Screw hook socket Feb. 15, 2005
6851337 Method and apparatus for turning a set screw for a yoke Feb. 8, 2005
6843154 Drum plug and faucet wrench Jan. 18, 2005
6834569 Crescent wrench Dec. 28, 2004
6755099 Drive wrench structure Jun. 29, 2004
6745648 Lock-nut wrench Jun. 8, 2004
6725703 Hinge adjustment tool and method of use Apr. 27, 2004
6668686 Inner periphery of a driving member for driving nut with different specifications Dec. 30, 2003
6666110 Twist off bottle cap remover Dec. 23, 2003
6647834 Method for processing a hand tool Nov. 18, 2003
6640670 Tool for engine crank shaft Nov. 4, 2003
6601476 Adaptor device for a wrench Aug. 5, 2003
6389632 Computer mouse cleaner May. 21, 2002
6382055 Gas wrench and storage therefor May. 7, 2002
6367357 Positive engagement spanner wrench Apr. 9, 2002
6334375 Tool for engine crank shaft Jan. 1, 2002
6320608 Remote installation and removal tool for video surveillance camera assembly Nov. 20, 2001
6305252 Torque enhancing wrench Oct. 23, 2001
6306051 Device for maintaining projectile-type game dart Oct. 23, 2001
6295901 Method and apparatus for coupling a fiber optic connector Oct. 2, 2001
6286570 Adjustable anti-splitting device Sep. 11, 2001
6216959 Nozzle for centrifuge rotors and method of removing same Apr. 17, 2001
6176157 Hydro static wrench Jan. 23, 2001
6170364 Soft golf spike utility tool Jan. 9, 2001
6131494 Shock absorber adjustment tool and method Oct. 17, 2000
6109292 Method and apparatus for removing and replacing the tamperproof device for a fire hydrant or other valve device Aug. 29, 2000
6089253 Fire hydrant security systems Jul. 18, 2000
6053079 Tool for manipulating threaded ball joint stud locating Apr. 25, 2000

1 2 3










 
 
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