| Patents for B25B 17 - Hand-driven gear-operated wrenches or screwdrivers (1,139) |
|---|
| 07/21/1999 | CN2329500Y Amorphism expanding shaft |
| 07/15/1999 | WO1999024224A3 Hand wrench with torque augmenting means |
| 06/30/1999 | CN2326392Y Power socket wrench |
| 06/29/1999 | US5916339 One-way drive mechanism and corresponding ratchet tool |
| 05/26/1999 | CN2320377Y Large torque nut wrench |
| 05/20/1999 | WO1999024224A2 Hand wrench with torque augmenting means |
| 05/05/1999 | CN1216016A Horizontal extension for actuating tools with polygonal drive |
| 04/28/1999 | CN2316094Y 差速工具组 Differential toolset |
| 04/14/1999 | EP0907465A1 Screwing device |
| 04/13/1999 | US5893422 Rotating tool |
| 03/30/1999 | US5887493 Ratchet wrench |
| 03/16/1999 | US5881609 Reversing-input bidirectional-output longitudinally-slideable-shaft |
| 01/27/1999 | EP0892699A1 Horizontal extension for actuating tools with polygonal drive |
| 01/20/1999 | CN1205405A Shaft coupling |
| 01/19/1999 | US5860335 Torque transfer device with adjustment apparatus |
| 12/03/1998 | WO1998053958A1 Hand tool with supporting arm and retaining mechanism and a method for loosening of attachment means |
| 12/03/1998 | CA2291185A1 Hand tool with supporting arm and retaining mechanism and a method for loosening of attachment means |
| 11/26/1998 | WO1998052721A1 A portable tool for loosening and tightening threaded fasteners such as screws, nuts and the like |
| 11/19/1998 | WO1998051449A1 Efficient mechanical rectifier |
| 10/22/1998 | DE19716385A1 Spanner for nuts and bolts that are difficult to access |
| 10/15/1998 | DE19714921A1 Ratchet for tightening or adjusting machine elements |
| 09/29/1998 | US5813666 Clamping device with a mechanical force amplifier |
| 09/22/1998 | US5809600 Mutifunctional tool able to receive removable attachments |
| 08/26/1998 | CN2288822Y Wrench providing for torque amplification |
| 07/15/1998 | EP0504331B1 Fluid-operated wrench |
| 07/15/1998 | CN1039107C Force-feeding adjustable screw tightening loosening device |
| 07/09/1998 | WO1998029219A1 Right wrench |
| 07/08/1998 | EP0673300B1 Hand tool for tightening and loosing a screw element |
| 07/07/1998 | US5775182 Compound power socket wrench |
| 06/23/1998 | US5768957 Ratchet tool |
| 06/23/1998 | CA2149351C Universal joint for torque transmitting tools |
| 06/18/1998 | DE19754275A1 Manual screwing tool for rotary screw nut or head, with drive unit |
| 06/17/1998 | CN2284122Y Booster for socket wrench |
| 05/28/1998 | DE19647914A1 Tool-set for tightening or loosening screws and nuts |
| 05/27/1998 | CN2282483Y 螺丝刀 Screwdriver |
| 05/13/1998 | CN2281239Y Spanner for large nut on flange or in narrow place |
| 04/29/1998 | CN2279990Y Universal torque amplification device |
| 04/07/1998 | US5735182 Apparatus for assembling threaded connectors |
| 03/31/1998 | US5732605 Wrench extension tool |
| 03/18/1998 | EP0829330A1 A tool handle with a pivotable gripping member |
| 02/24/1998 | CA2134689C Cam drive mechanism |
| 02/20/1998 | CA2213940A1 High torque handle |
| 01/29/1998 | WO1998003845A1 Screw angle measurement device |
| 01/21/1998 | CN1171073A Ratachet wrench |
| 01/20/1998 | US5709136 Power driven tools |
| 12/16/1997 | US5697266 Line fitting orientation guide for a fitting manipulating tool including a split socket and combination thereof |
| 12/04/1997 | WO1997045232A1 Screwing device |
| 11/25/1997 | US5690005 Tool for remotely installing and torquing tie rod nut with limited vertical access |
| 10/23/1997 | WO1997038826A1 Horizontal extension for actuating tools with polygonal drive |
| 10/22/1997 | EP0802022A1 Clamping device with a mechanical power booster |
| 10/08/1997 | EP0799112A1 Ratchet wrench |
| 08/21/1997 | DE19704789A1 Flat geared drive unit |
| 07/16/1997 | EP0644816B1 Nut wrench device, especially for loosening or tightening wheel nuts or similar |
| 07/09/1997 | EP0782903A1 Multipurpose tool for receiving removable tools |
| 06/17/1997 | US5638726 Hand tool for screwing and unscrewing a screw means |
| 06/04/1997 | CN2255335Y Effort-saving assembling-disassembling wrench |
| 05/20/1997 | US5630343 For right angle torque transmission |
| 04/01/1997 | US5616095 Force multiplier tool |
| 03/27/1997 | WO1997010927A1 Wrench extension tool |
| 02/20/1997 | DE19528491C1 Crowbar conduit insert device |
| 01/30/1997 | WO1997002928A1 Force multiplier tool |
| 12/24/1996 | US5586474 Torque transfer tool |
| 12/11/1996 | CN2242163Y Quick action and power saving wrench |
| 11/17/1996 | CA2149505A1 Double-ended socket wrench for sprinkler nozzles |
| 09/24/1996 | US5557991 For making rotational adjustments of electrical/mechanical devices |
| 08/28/1996 | CN2233815Y High torque force screwdriver |
| 08/13/1996 | US5544553 Off-set geared nutrunner attachment |
| 08/08/1996 | DE19523918A1 Powered screw driver with chuck |
| 07/30/1996 | US5540123 Torque transfer device |
| 07/30/1996 | US5540122 Torque transfer tool |
| 07/23/1996 | US5537901 Apparatus for making fine adjustments to a rotary adjuster |
| 07/23/1996 | US5537897 Split socket with movable facets and drive assembly |
| 07/10/1996 | CN2230648Y Spanner with aid |
| 07/04/1996 | WO1996020071A1 Ratchet wrench |
| 06/25/1996 | US5528964 Wrench assisting tool and method |
| 06/04/1996 | US5522286 Mechanism for coupling and selectively positioning a socket drive transfer assembly and a driver |
| 06/04/1996 | US5522285 Mechanism for locating a slotted socket relative to a drive transfer housing and combination thereof |
| 03/26/1996 | US5501107 Torque tool |
| 03/21/1996 | WO1996008341A1 Torque transfer device |
| 03/21/1996 | WO1996008340A1 Split socket with movable facets and drive assembly |
| 03/21/1996 | CA2199963A1 Torque transfer device |
| 03/21/1996 | CA2199950A1 Split socket with movable facets and drive assembly |
| 03/19/1996 | US5499557 Drain plug removing device |
| 03/19/1996 | US5499554 Nut wrench device, especially for loosening or tightening wheel nuts or similar |
| 02/15/1996 | WO1996004104A1 Torque transfer device |
| 02/15/1996 | CA2196566A1 Torque transfer device |
| 02/01/1996 | WO1996002361A1 Ratchet wrench |
| 01/31/1996 | EP0694369A1 Device to screw and unscrew threaded elements |
| 01/24/1996 | CN2218059Y Assembled two-speed cranking bar and bidirectional ratchet |
| 01/10/1996 | CN2216894Y Device for providing torque amplification |
| 12/20/1995 | EP0600963B1 Chart for testing visual acuity and/or sensitivity to spatial contrasts of a man, device for testing, and process for the manufacture thereof |
| 12/14/1995 | WO1995033627A1 Spanner or wrench accessory |
| 12/05/1995 | US5471898 Breaker bar with 90 degree rotating socket connector head |
| 11/23/1995 | DE19512064A1 Self turning screwing tool for professional and home working |
| 10/31/1995 | US5461949 Ratchet transfer device |
| 10/24/1995 | US5460062 Reaction unit for threaded connector manipulating device and combination thereof |
| 09/27/1995 | EP0673300A1 Hand tool for tightening and loosing a screw element |
| 07/04/1995 | US5430510 Equipment for testing visual acuity and/or sensitivity to spatial contrasts in humans, and a corresponding device and manufacturing process |
| 06/28/1995 | CN2202016Y Two-way large torque spanner driven by electric power or hand |
| 06/07/1995 | CN2199847Y Wrench |