| Patents for B25B 19 - Impact wrenches or screwdrivers (386) |
|---|
| 06/26/2001 | US6250187 Screwdriver with an impact device |
| 04/18/2001 | EP1092511A1 Universal torque power tool |
| 02/14/2001 | CN1283538A General purpose electric twisting tool |
| 11/28/2000 | US6152243 Universal torque power tool |
| 11/15/2000 | CN2405707Y Screw-driver with impacting function |
| 10/05/2000 | DE10014233A1 Screw-driver for self-cutting screws has handle containing axial passage containing striking mechanism, bar with striking section , and striking component on handle periphery |
| 07/11/2000 | US6085621 Ratchet wrench |
| 07/05/2000 | CN2385848Y Impact set improving struture of pneumatic wrench |
| 06/14/2000 | CN2382513Y Radial impact air spanner |
| 05/24/2000 | CN2379254Y Combination type socket spanner for double head screw bolt and screw nut |
| 03/22/2000 | CN2369828Y Plane force system hydraulic spanner |
| 03/15/2000 | EP0985499A2 Device for the loosening of jammed screw or nuts and a corresponding nut |
| 03/09/2000 | DE19840916A1 Vorrichtung zum Lösen von festsitzenden Schrauben und Muttern und eine dieser Vorrichtung angepaßte Mutter Apparatus for loosening tight screws and bolts and a nut adapted this device |
| 03/08/2000 | CN2367437Y Structure-improved impact screwdriver |
| 02/23/2000 | CN2365020Y Electric impulsive torque spanner |
| 02/09/2000 | CN2362659Y Structure improved socket |
| 12/28/1999 | US6006634 Socket wrench with impact drive |
| 12/15/1999 | EP0963814A2 Ratchet wrench |
| 12/15/1999 | CN1238255A Ratchet wrench |
| 10/05/1999 | US5960685 Torque wrench |
| 09/08/1999 | CN2336924Y Spanner with torsion detection and bump screw of improved structure |
| 11/18/1998 | CN2297289Y Energy-saving electric wrench |
| 12/02/1997 | US5692420 Socket wrench with impact drive |
| 06/17/1997 | US5638590 Tool for servicing subterranean gate valves |
| 02/25/1997 | US5604948 Impact termination tool configured for torque applications |
| 06/18/1996 | US5526722 Impact tool for removing bolts |
| 04/17/1996 | CN1120751A Impact termination tool configured for torque applications |
| 04/02/1996 | US5503050 Force transferring system for a fastener |
| 01/03/1996 | CN2216447Y Wrench with internal hole type cavity |
| 12/06/1995 | CN2214269Y Box spanner |
| 10/25/1995 | EP0678943A2 Impact termination tool configured for torque applications |
| 10/25/1995 | CN2210754Y Reversible-opening box spanner |
| 10/23/1995 | CA2146898A1 Impact termination tool configured for torque applications |
| 09/21/1995 | DE4409494A1 Screwdriver |
| 09/21/1995 | DE4408653A1 Method for tightening of threaded fasteners using preset torque |
| 09/20/1995 | EP0672505A1 Screw driver |
| 09/20/1995 | CN2207913Y Internal hexagon wrench |
| 08/02/1995 | CN2204223Y Spanner casing-tube |
| 05/31/1995 | CN2199020Y Ratchet double offset ring spanner with double heads movable four kinds of specification handles |
| 05/31/1995 | CN2199019Y Improved structure of automatic impact screwdriver |
| 05/31/1995 | CN2199011Y Omnibearing torsional T-shape wrench |
| 05/17/1995 | CN2197174Y Sleeve for screw driver |
| 04/19/1995 | CN2194796Y Connection structure of female and handle for female spanner |
| 03/22/1995 | CN2192443Y Multipurpose simple box end wrench |
| 03/22/1995 | CN2192442Y Two-way 6-angle box end wrench |
| 03/01/1995 | CN2190539Y 改良的套筒结构 Improved sleeve structure |
| 01/18/1995 | CN2187522Y Improved structure sleeve joint of wrench |
| 01/18/1995 | CN2187521Y Flexible wrench |
| 01/04/1995 | CN2186633Y Quick changable sleeve for straight handle tools |
| 01/04/1995 | CN2186632Y Boosting box spanner |
| 10/23/1994 | CA2094675A1 Hammer wrench |
| 10/19/1994 | CN2179810Y Ratchet casing |
| 09/07/1994 | CN2176218Y Box spanner |
| 07/19/1994 | US5329802 Automatic slide hammer attachment |
| 06/29/1994 | CN2170187Y Screwdriver |
| 06/21/1994 | US5321999 Automatic impact screwdriver |
| 06/01/1994 | CN2166922Y "L" shaped power-saving wrench |
| 03/03/1994 | DE4229248A1 Tool for loosening or tightening nuts and bolts - consists of ring with hexagonal bore fitting on nut and with peripheral teeth against which driving punch can be seated to transmit tangential hammer blow |
| 11/10/1992 | US5161440 Wrench for transmitting variable magnitude vibrational forces to bolt |
| 10/29/1992 | WO1992018289A1 Impact tool |
| 09/30/1992 | CN2117235U Multifunctional wrench with a flexible rod |
| 09/23/1992 | CN2116562U Combined screwdriver tool |
| 08/18/1992 | US5138915 Impact pipe wrench |
| 08/12/1992 | CN2112482U Safety wrench for lathe headstock calliper |
| 06/17/1992 | DE4038906A1 Box spanner for loosening corroded nuts - has flattened section that can be struck by hammer towards end of torque arm |
| 06/03/1992 | CN2106044U Screwdriver with adjustable impact |
| 05/05/1992 | US5109739 Slide hammer tool |
| 04/29/1992 | CN2102826U Helve assembly combined tool |
| 04/15/1992 | CN2101561U Dual-purpose screwdriver with flat or cross head |
| 03/18/1992 | CN2098995U Screwdriver and its improvement |
| 03/17/1992 | US5095784 Impact-spinner wrench |
| 02/26/1992 | CN2097071U Dual-purpose screwdriver |
| 02/19/1992 | CN2096452U Hand screwdriver |
| 02/19/1992 | CN2096451U Multipurpose combined tool for repairing instrument |
| 02/12/1992 | CN2095742U Qick multi-purpose screw tool |
| 02/12/1992 | CN2095741U Jaw type wrench |
| 01/15/1992 | CN2093069U Screwdriver with claw |
| 01/15/1992 | CN2093068U Ratchet type wrench for car tyre |
| 01/15/1992 | CN1057805A Multipurpose screw driver |
| 01/08/1992 | CN2092411U Screwdriver with removable heads |
| 01/08/1992 | CN2092410U Screwdriver with two heads |
| 12/25/1991 | CN2091207U Multi-functional screwdriver |
| 11/13/1991 | CN2088492U Adjustable button type tyre nut dismantling machine |
| 10/09/1991 | CN2086189U Box spanner |
| 09/18/1991 | CN2084862U Adjustable box spanner |
| 08/07/1991 | CN2082225U Single body dual head screw-driver |
| 08/07/1991 | CN2082224U Reinforced wrench |
| 07/17/1991 | CN2080895U Bushing driver special for stud |
| 07/17/1991 | CA2007980A1 Adjustable wrench |
| 06/19/1991 | CN2079107U Hand impact wrench (cn) |
| 06/12/1991 | CN2078714U Outer bearing puller of car front wheel |
| 05/29/1991 | CN2077779U Tap spanner for industry use |
| 05/07/1991 | US5012709 Impact screw driver |
| 03/27/1991 | CN2073797U Built-in type interchangeable head multi-purpose screw driver |
| 03/20/1991 | CN1049997A Combined screw driver |
| 02/27/1991 | CN2072005U Multifunctional screwdriver |
| 01/16/1991 | CN2069340U Multi-specification ring-inner-hexagon combination tool |
| 11/28/1990 | CN2066374U Sleeve type apparatus used with screw drivers |
| 11/07/1990 | CN2065124U Simple impact wrench |
| 10/24/1990 | CN2064289U 套筒改锥 Sleeve screwdriver |