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)
06/1990
06/20/1990CN2058368U 实用起子 Practical screwdriver
05/1990
05/29/1990US4928560 Power driven screw driver
05/23/1990EP0369655A2 Improved screwdriver bit for Phillips-head fasteners
05/16/1990CN2057133U Combined hand tool
05/16/1990CN2057132U Multi-function screw driver
05/15/1990US4924736 Gripping screw drive bit
05/15/1990US4924733 Multiple bit screwdriver
05/03/1990WO1990004498A1 Screw-driver blade or screw-driver bit
04/1990
04/25/1990EP0213121B1 Fastener wrenching means
04/25/1990CN2056378U Semi-automatic band rotary screwdriver
04/24/1990US4919216 Automatic impact driver
04/18/1990CN2056117U Semi-automatic combination thrust screwdriver
04/17/1990US4916988 Ratchet screwdriver
04/11/1990CN1041126A Portable screw driver having flexible extension shaft
03/1990
03/21/1990EP0359543A2 Flexible extension shaft for a screwdriver
03/21/1990EP0358884A1 Screw driver
02/1990
02/22/1990WO1990001399A1 Inclinable polygonal wrench
02/20/1990US4901752 Apparatus for maintenance of ball valve
02/20/1990US4901607 Ratcheting tool driver and method of assembling an improved ratcheting tool driver
02/14/1990CN1039550A 螺丝刀 Screwdriver
02/07/1990CN2052324U Screw driver with jaws and magnet
01/1990
01/17/1990CN2051149U Multifunction electrician screwdriver
01/02/1990US4890521 Self-gripping power screw driver bit
12/1989
12/14/1989DE3819041A1 Schraubendreher Screwdriver
12/13/1989CN2049173U Screw tool
12/06/1989CN2048816U 电磁螺丝刀 Electromagnetic screwdriver
12/05/1989US4884478 Screw tool
11/1989
11/29/1989CN2048415U Universal screw driver
11/09/1989DE3839788C1 Screwdriver blade or screwdriver insert
11/08/1989CN2047207U Dual-purpose screw driver
11/07/1989US4878794 Collated screw fasteners
11/07/1989US4878406 Screwdriver blade
11/07/1989US4878306 Shotgun choke insertion and removal tool
11/01/1989CN2046791U Xx-1 type screwdriver
10/1989
10/31/1989US4876929 Portable screw driver having flexible extension shaft
10/25/1989EP0338030A1 Apparatus for maintenance of ball valve
10/18/1989CN2046058U Multi-purpose screwdriver
10/17/1989US4873900 Screw driving device
10/11/1989EP0336136A1 Screw driver bit
10/04/1989EP0334921A1 Pocket screwdriver with bit magazine and clip
09/1989
09/28/1989DE3907567A1 Screwdriver bit
09/28/1989DE3808534A1 Configuration of a screwing element, in particular of the head of a screw, and of the appertaining actuating tool
09/27/1989CN2044923U Turning apparatus with telescopic magic hand
09/27/1989CN2044922U Length adjustable combined screw-driver
09/21/1989WO1989008790A1 Cap screw with socket head intended for an internal drive
09/21/1989WO1989008536A1 Screwdriver bit
09/21/1989DE3807741A1 Kopfschraube mit einer fuer einen innenantrieb vorgesehenen senkung Head screw with a drive for an internal envisaged reduction
09/20/1989CN2044532U Multipurpose screw
09/19/1989US4867018 Phillips screwdriver with retractable slotted screwdriver blade
09/06/1989EP0330870A2 Tool shaft
09/05/1989CA1258984A1 Screw driver tip
08/1989
08/23/1989EP0328799A2 Variable torque driver tool
08/23/1989CN2043162U Screwdriver structure for alternating drill bit by propelling
08/22/1989US4858504 Screwdriver with insulated shaft and polygonal driving head
08/17/1989DE3744176A1 Multiple tool, in particular roof-rack wrench for a motor vehicle
08/15/1989US4856953 Hook-driven screw with replaceable hook
08/15/1989US4856387 Hermaphrodite wrench
08/09/1989CN2042403U 螺丝刀 Screwdriver
08/02/1989CN2042000U Screw driver with forcing mechanism
08/01/1989US4852196 Combination drill and screwdriver
07/1989
07/27/1989DE3836179A1 Screwdriver
07/19/1989CN2041230U 双用起子 Double with a screwdriver
07/18/1989US4848197 Multiple bit handtool
07/11/1989US4846027 Screwdriver
06/1989
06/28/1989CN2040025U Large-torque semi-automatic combined screwdriver
06/20/1989US4840249 Apparatus for srewing a cover onto a screw neck of a hearing aid
06/13/1989US4838134 Torque wrench
06/07/1989CN2038832U Screwdriver with gripper block
06/06/1989US4836066 Self-storing tool set
05/1989
05/23/1989US4832556 Coupling apparatus
05/23/1989US4831904 Disc brake tool
05/09/1989US4827813 Torque wrench with amplifying gauge
05/09/1989US4827812 Pocket screwdriver
05/09/1989US4827811 Tamper-resistant fastener and tool for operating same
05/02/1989US4825734 Variable leverage tool handle
04/1989
04/27/1989DE3734016A1 Taschenschraubendreher mit bits-magazin und clip Pocket screwdriver with bits-magazine and clip
04/20/1989WO1989003282A1 Pocket screwdriver with bit magazine and clip
04/12/1989CN2035693U Screwdrive operated by rotating handle
04/05/1989CN2035300U Screwdriver
04/05/1989CN2035299U Screwdriver with illuminating device
03/1989
03/29/1989EP0308968A1 Off-axis bit or the like
03/29/1989CN2034893U Screw driver with lighting function
03/29/1989CN2034892U Combined lighting electric probe screw driver
03/28/1989US4815346 Multi-purpose tool
03/22/1989CN2034507U 两用改锥 Dual screwdriver
03/22/1989CN2034504U Multifunctional pincers
03/16/1989DE3804749A1 Screwdriver with screw holder, in particular for bone screws
03/08/1989CN2033727U Clamp with elements of auxiliary tools
03/07/1989US4809569 Anti-theft system for articles secured by recessed socket head threaded fasteners
03/01/1989CN2033327U Movable spanner having multi-role
02/1989
02/23/1989WO1989001584A1 Apparatus for maintenance of ball valve
02/22/1989CN2032928U Power-increasing screwdriver
02/22/1989CN2032927U Plug-in type combined screw precession tool
02/08/1989CN2032119U Soft axis type screwdriver
02/01/1989CN2031737U Multipurpose combined electrician's knife
01/1989
01/31/1989US4800787 System to install a vandal-resistant screw
01/26/1989DE3723443A1 Safety screw and tool
01/24/1989US4799407 Ratchet screwdriver
01/18/1989CN2030933U Improved type manual tool
01/17/1989CA1248788A1 Multibit hand tool with improved bit insertion
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