Patents
Sitemap › B25 - Hand tools; Portable power-driven tools; Handles for hand implements; Workshop equipment; Manipulators › B25B - Tools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding › B25B 15 - Screwdrivers
Patents for B25B 15 - Screwdrivers (5,371)
01/1989
01/11/1989CN2030531U Screwdriver with a gripper
01/11/1989CN2030530U Portable dual-head screwdriver
12/1988
12/28/1988CN87215416U 螺丝刀 Screwdriver
12/27/1988US4793222 Ratcheting tool driver and method of assembling a ratcheting tool driver
12/15/1988WO1988009708A1 Screw tool and screws usable therewith
12/14/1988CN87214331U Multi-purpose crewdriver
12/01/1988DE3716808A1 Screw
11/1988
11/29/1988US4787278 Tool bit driver with spring retainer
11/08/1988CA1244267A1 Adjustable screw driver
11/02/1988EP0143826B1 Improved high torque fastener and driving tool
11/02/1988CN87213305U Magnetic force screw revolving device
10/1988
10/26/1988EP0287823A1 Surgical handtool
10/25/1988US4779494 Screwdriver having screw gripping feature
10/25/1988CA1243517A1 High torque fastener and driving tool
10/18/1988US4778730 Method of applying non-slip coating to tools and resulting product
10/18/1988US4777852 Ratcheting screwdriver
10/11/1988US4776246 Combination screwdriver hand tool
10/05/1988CN87210972U Portable multipurpose spinning apparatus
09/1988
09/13/1988US4770071 Tool drive mechanism
08/1988
08/31/1988EP0279899A1 Screwing tool
08/23/1988US4765009 Multi-functional bar of a manually operated jack
08/16/1988US4763548 Screwdriver, particularly for surgical purposes
08/09/1988US4762036 Screw driver
08/04/1988DE3701574A1 Screw head with slot
07/1988
07/26/1988US4759241 Screw driver
07/20/1988CN87211468U Megnetic screwdriver
07/20/1988CN86209303U Multipurpose screw driver with rotary head stored in handle
07/07/1988DE3644449A1 Screwdriver
06/1988
06/29/1988EP0272647A2 Bone bolt nut wrench
06/21/1988CA1238214A1 Multi-purpose tool
06/16/1988WO1988004221A1 Self-storing tool set
05/1988
05/24/1988US4745980 Auto-hammer driver
05/19/1988DE3705663A1 Reversible ratchet screwdriver with clamps
05/11/1988EP0266888A1 Bolts and drivers
05/03/1988US4741228 Stud extractor
04/1988
04/26/1988US4739838 Hand-squeeze powered motorless driver
04/07/1988DE3703850A1 Screwdriver with impact cap, which can also be actuated by an accessory device
04/05/1988US4735120 Ratcheting tool driver and method of assembling a ratcheting tool driver
03/1988
03/23/1988EP0213121A4 Fastener wrenching means.
03/23/1988CN87207511U Impact screw driver
03/16/1988CN87207212U Adjustable head multipurpose rotating chisel
03/16/1988CN87203542U Screw-driver with jaw
03/09/1988CN87207260U Screwdriver for biting parallel groove screw
03/08/1988US4729271 Screwdriver handle
03/02/1988EP0257664A1 Internal drive, covering cap and screwdriver for a universal screw
02/1988
02/24/1988CN87204031U Multi-functional combined wrench
02/16/1988CA1232781A1 Multiple bit screwdriver with improved chuck arrangement
02/03/1988CN87202446U Force saving screwdriver
01/1988
01/28/1988DE3624680A1 Hand-guided tool
01/05/1988US4716797 Screwdriver with concave blade
12/1987
12/05/1987CN86207120U Convenient, durable screwdriver with high efficiency
12/02/1987EP0247263A1 A device for quickly replacing a standard screwdriver tip end
12/02/1987CN87203084U 磁性螺丝刀 Magnetic screwdriver
11/1987
11/26/1987DE3629124C1 Device for the edge-equidistant and surface-flush setting and attachment of a headlamp housing in a vehicle-body section of the same shape
11/04/1987CN87200296U Folding-tortuous type screwdriver
10/1987
10/22/1987WO1987006173A1 An adapter
10/07/1987CN86210958U Pocket universil screwdriver linked on key ring
09/1987
09/29/1987US4696208 Direction-changeable structure of hand tool handle
07/1987
07/28/1987CA1224650A1 Ratchet screwdriver
07/21/1987US4680996 Screwdriver
07/21/1987US4680995 Screwdriver
07/09/1987DE3643784A1 Screwdriver
07/08/1987CN86203832U Multifunctional adjustable spanner
07/07/1987US4677972 Coupling assembly for joining an implant tool to a bone implant
07/01/1987CN86207562U Repairing tool for cassette
06/1987
06/10/1987EP0224693A1 Screwing tool with reversible ratchet
06/10/1987CN86201393U Four function extension insulated electrician knife
06/09/1987US4670927 Method and apparatus for forming the head of a high torque fastener
05/1987
05/27/1987EP0222971A1 Screw driver, especially for surgical purposes
05/27/1987CN86204262U Combined screw-driver with double workhead rod
05/13/1987EP0221279A2 Screw driver insert
04/1987
04/29/1987CN86203505U Versatile hand tool for rotational operations
04/23/1987DE3537141A1 Screw-screwdriver system with conical groove
04/15/1987CN86201409U Screwdriver with hold and carrying screw
03/1987
03/31/1987US4653486 Fastener, particularly suited for orthopedic use
03/11/1987EP0213121A1 Fastener wrenching means.
02/1987
02/24/1987US4644831 Adaptor sleeve
02/19/1987DE3630809A1 Screwdriver
02/17/1987US4643052 Bevel gear driven offset screwdriver arrangement
02/11/1987CN86203457U Self-lighting screw driver
02/05/1987DE3606820A1 Screwdriver
02/05/1987DE3526582A1 Portable drill with a fixing device for insertable tools
01/1987
01/24/1987CN86101808A Flexible insulated electrician's knife with four functions
01/07/1987EP0207578A1 Multibit hand tool
12/1986
12/17/1986CN86201129U Screwdriver with a thickness-changing bit
12/17/1986CN86200592U Screwdriver able to speed up in operation
12/09/1986CA1214953A1 Multiple bit screwdriver
12/02/1986US4625598 Positive engagement screw driver tool
11/1986
11/25/1986US4624323 Multi-purpose impact hand tool kit
11/12/1986CN86200444U 3-way screwdriver for electrician
11/11/1986US4621718 Ratchet screwdriver
11/04/1986US4620461 Screw driving tool
11/04/1986CA1213453A1 Multiple bit screwdriver
10/1986
10/15/1986CN85204983U Multifunctional plate tool
10/07/1986CA1212268A1 Multiple screwdriver with mechanical blade release
09/1986
09/23/1986US4613000 Apparatus for fastening misaligned structural members
09/03/1986CN85204752U Three-way pen-type tool
08/1986
08/28/1986WO1986004853A1 Fastener wrenching means
08/19/1986US4606246 Socket wrench coupler
08/13/1986EP0190982A2 Connection device between a bone implant and the tool for its insertion
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