| Patents for B25B 19 - Impact wrenches or screwdrivers (386) |
|---|
| 10/10/1990 | CN2063466U Multi-function combined box end wrench |
| 10/10/1990 | CN1045939A Dual-purpose wrench |
| 09/26/1990 | CN2062679U Easily recognized jacket set suitable for metric and imperial systems |
| 08/29/1990 | CN2061108U Grinding square type versatile plum blossom wrench |
| 08/08/1990 | CN2060105U Multi-purpose hand tool |
| 06/20/1990 | CN2058370U "-"shape antiskid screwdriver |
| 06/20/1990 | CN2058369U Combined screwdriver |
| 06/13/1990 | CN1042860A Adjustable ratchet wrench |
| 05/29/1990 | US4928560 Power driven screw driver |
| 05/09/1990 | CN2056890U Labour-saving spanner |
| 04/24/1990 | US4919216 Automatic impact driver |
| 04/18/1990 | CN2056118U Multi-purpose rotating wheel screw driver |
| 04/11/1990 | CN2055767U Stud quick tightening tool |
| 03/28/1990 | CN2055082U Multi-function combined spanner |
| 03/22/1990 | DE3831756A1 Striking tool with guide rod |
| 03/14/1990 | CN2054395U Gearshift box spanner |
| 03/07/1990 | CN2053972U Fast durable screw driver |
| 02/07/1990 | CN2052323U Internal hex box wrench |
| 02/07/1990 | CN2052322U Multifunctional hammer-shaped tool |
| 01/24/1990 | CN2051547U Manual/power driven adjustable socket wrench for spark plugs |
| 12/13/1989 | CN2049174U Lathe tool for outer hexagon nut |
| 12/06/1989 | CN2048817U Eight-direction double offset ring spanner |
| 11/29/1989 | CN2048414U Dual spanner for double pipe and screw nut |
| 11/22/1989 | CN2048008U Dual purpose box end wrench |
| 11/21/1989 | US4881433 Remote manipulable device for establishing a transport connection with a remote manipulable tool |
| 10/25/1989 | CN2046426U Combined box spanner |
| 10/25/1989 | CN2046425U Self regulating box spanner |
| 10/25/1989 | CN2046424U Test screw-driver bit for vehicle |
| 10/18/1989 | CN2046059U Spanner socket |
| 10/11/1989 | CN2045683U Drum-type multipurpose double offset ring spanner |
| 09/20/1989 | CN2044533U Labour saving turnscrew |
| 09/13/1989 | CN2044202U Multi-purpose screw driver with release |
| 09/12/1989 | US4864902 Socket wrench slugging device |
| 09/06/1989 | CN2043907U Torque wreneh with electronic acoustics |
| 08/09/1989 | CN2042404U Multi-purpose adjustable sleeve |
| 08/02/1989 | CN2042146U Automatic oil painter |
| 07/19/1989 | CN2041231U Combined safety screwdriver |
| 06/14/1989 | CN2039254U Multi-purpose impact wrench |
| 05/03/1989 | CN2036888U Multifunction pocket spanner |
| 04/26/1989 | CN2036471U Portable box spanner |
| 01/25/1989 | CN2031337U Combination impact wrench |
| 01/03/1989 | US4794993 Manual torque magnifying impact tool |
| 01/03/1989 | US4794830 Tool for loosening fasteners |
| 10/19/1988 | CN88200445U Special sleeve head of impact wrencher |
| 10/19/1988 | CN87203459U Spanner for double-head screw bolt |
| 09/28/1988 | EP0283471A1 An impulse torque tool for a component of a bolted joint |
| 07/26/1988 | US4759242 Device in impact wrenches |
| 06/15/1988 | CN86104123A Universal liner wrench |
| 06/07/1988 | US4748878 Impact socket wrench or an attachment assembly with hammering effect |
| 05/24/1988 | US4745980 Auto-hammer driver |
| 05/11/1988 | CN87210604U Wrench for fast removing tyre |
| 03/16/1988 | CN86210133U Railway spanner |
| 01/13/1988 | CN87206968U High field-intensity twisting-type casing pipe |
| 12/26/1987 | CN87207751U Spanner for positioning screw threads |
| 11/24/1987 | US4708209 Manually operated impact driver |
| 10/21/1987 | CN87200110U Valve gap adjuster for internal combustion engine |
| 08/26/1987 | CN86207395U Multifunction head-changeable screw driuer |
| 08/05/1987 | CN86202390U Multi-purpose adjustable wrench with through hole and rotary ring spanner |
| 05/13/1987 | CN85108077A Portable tool kit for motor vehicles |
| 04/23/1987 | WO1987002291A1 An impulse torque tool for a component of a bolted joint |
| 02/04/1987 | CN86201506U 万能套筒扳手 Universal socket wrench |
| 02/03/1987 | CA1217365A1 Automatic stud driving tool |
| 01/15/1987 | DE3523781A1 Tool for releasing or closing tight screwed pipe connections |
| 12/16/1986 | US4628776 Rotary impact lug tool |
| 11/25/1986 | US4624323 Multi-purpose impact hand tool kit |
| 07/29/1986 | US4602688 Device for performing remotely-manipulated maintenance work in a shielded cell |
| 04/09/1986 | EP0176881A1 Hand tool with a device for applying an impact torque |
| 01/14/1986 | US4563923 Impact tool |
| 12/31/1985 | US4561507 In an impact tool |
| 04/30/1985 | US4513643 Automatic stud driving tool |
| 12/19/1984 | EP0128883A1 Impact-driven key arrangement |
| 10/02/1984 | US4474091 Tap wrench |
| 06/26/1984 | US4455899 Impact wrench |
| 12/06/1983 | US4418768 Manual torque magnifying impact tool |
| 05/10/1983 | US4382476 Manual torque magnifying impact tool |
| 01/04/1983 | CA1138693A1 Torque multiplier assembly |
| 12/21/1982 | US4364440 Hand held rotary impact tool |
| 07/13/1982 | CA1127432A1 Rotary impact tool for applying a torque force |
| 11/10/1981 | US4299144 Hand tool and method for using same |
| 10/06/1981 | US4293044 Manually-actuated rotary-impact tool |
| 03/03/1981 | US4253353 Impact wrench for hexagonal nuts |
| 01/06/1981 | US4243109 Bi-directional rotary impact tool for applying a torque force |
| 01/22/1980 | US4184552 Manually actuated impact tool |
| 06/05/1979 | US4157120 Rotary impact mechanism having a spring accelerated inertia member |
| 01/31/1978 | US4070931 Lug wrench |
| 04/13/1976 | US3949816 Utility impact wrench |