| Patents for B25B 15 - Screwdrivers (5,371) |
|---|
| 02/26/1992 | CN2097068U Magnetic screwdriver |
| 02/12/1992 | CN2095740U Force-saving sliding-proof screwdriver |
| 01/29/1992 | CN2094428U Combined driver for super short driving head |
| 01/28/1992 | US5083358 Method of preventing twisted-off bolt head while tightening a bolt |
| 01/22/1992 | EP0467232A2 Screwdriver/screw |
| 01/15/1992 | CN2093067U Screwdriver with revolving handle |
| 01/15/1992 | CN2093066U Dual-purpose screwdriver |
| 01/08/1992 | CN2092409U Screwdriver with five heads |
| 01/08/1992 | CN2092408U Screwdriver being able to adjust the head thereof |
| 01/08/1992 | CN1057694A Multifunctional anti-prying lock for bicycle |
| 12/27/1991 | EP0462190A1 Hand held multiple object implement. |
| 12/25/1991 | CN2091206U Multi-functional screwdriver |
| 12/18/1991 | CN2090967U Multifunctional screw driver with leveler |
| 12/11/1991 | EP0435962A4 Screwdriver blade construction |
| 12/10/1991 | US5070750 Torque limiting apparatus |
| 12/03/1991 | US5069091 Screwdriver with pivotal handle |
| 11/27/1991 | EP0458449A1 Driver with fastener retention means |
| 11/27/1991 | EP0458447A2 Expandable drive tool tip for screw retention |
| 11/12/1991 | US5063797 Hand-held tool for rotatably driving a bit |
| 11/06/1991 | CN2088023U Smash-proof screwdriver |
| 11/05/1991 | US5062895 Chemical composition, and methods of constructing and utilizing same |
| 10/30/1991 | EP0453976A1 Screwdriver blade |
| 10/16/1991 | CN2086648U 改锥 Screwdriver |
| 10/16/1991 | CN2086647U Multipurpose screwdriver |
| 10/01/1991 | US5052253 Screwdriver |
| 10/01/1991 | CA1289917C Self-storing tool set |
| 09/24/1991 | US5051876 Compound hand tool with a screwdriver |
| 08/28/1991 | CN2083531U Screw driver with rotary light |
| 08/22/1991 | WO1991012115A1 Screwdriver for screws with a cross-recess and an additional diametral recess |
| 08/21/1991 | EP0442629A1 Drive system for prosthetic fasteners |
| 08/21/1991 | EP0442511A2 Allen-key |
| 08/14/1991 | CN2082663U Combined screw driver capable of setting up definite force |
| 08/14/1991 | CA2031298A1 Fastener driving tool set |
| 08/13/1991 | US5038644 Finger wrench or the like |
| 08/13/1991 | US5038452 Method of assembling an improved ratcheting tool driver |
| 08/07/1991 | EP0439501A1 Screw-driver blade or screw-driver bit. |
| 08/07/1991 | CN2082220U Universal wrench screw-driver |
| 07/31/1991 | CN2081782U Screwdriver |
| 07/16/1991 | US5031488 Color coding system |
| 07/10/1991 | EP0435962A1 Screwdriver blade construction |
| 07/10/1991 | CN2080444U Locking type screwdriver |
| 06/25/1991 | US5025688 Expandable drive tool tip for screw retention |
| 06/18/1991 | US5024565 Hand tool |
| 05/28/1991 | US5019080 Drive system for prosthetic fasteners |
| 05/28/1991 | US5018411 Multiple-head tool |
| 05/16/1991 | DE3937527A1 Hexagonal hollow headed fastener key - has faceted and profiled sides to give greater surface contact with hollow head of screw |
| 05/15/1991 | CN2076904U Multi-functional combined rotational tool |
| 04/17/1991 | CN2075127U Test pencil screwdriver with holder |
| 04/10/1991 | EP0421721A2 Screwdriver |
| 04/09/1991 | US5005279 Collet insertion and removal device and method |
| 04/02/1991 | US5003850 Screwdriver with holding sleeve |
| 03/27/1991 | CN2073796U Revolving wheel type multi-purpose screw driver |
| 03/26/1991 | US5001948 Screwdriver blade with curved tip |
| 03/19/1991 | US5000627 Apparatus for adjusting radial displacement from rotatable shaft |
| 03/13/1991 | EP0416218A2 Action grip for screwdriver |
| 03/12/1991 | US4998454 Screwdriver bit for phillips-head fasteners |
| 03/12/1991 | CA1281214C Ratcheting device |
| 02/20/1991 | CN2071568U Combined folding internal hexagon spanner |
| 02/13/1991 | CN2071115U Screwdriver with claw |
| 02/13/1991 | CN2071113U Slip-proof screwdriver |
| 02/13/1991 | CN2071111U Easy alternative screwdriver |
| 01/30/1991 | CN2070228U Driver for screw clamp claw |
| 01/29/1991 | WO1991001855A1 Color coding system |
| 01/29/1991 | CA2063418A1 Color coding system |
| 01/21/1991 | WO1991001201A1 Chemical composition, and methods of constructing and utilizing same |
| 01/21/1991 | CA2063805A1 Chemical composition, and methods of constructing and utilizing same |
| 01/17/1991 | DE4022763A1 Mechanical screwdriver tool - has in built torque limiter operating on ratchet principle |
| 01/16/1991 | CN2069339U Minus and plus shape common screwdriver |
| 01/08/1991 | US4982632 Socket wrench set |
| 01/02/1991 | CN2068452U Screwdriver with quick replaceable rod |
| 12/19/1990 | CN2067635U Clasp screwdriver |
| 12/18/1990 | US4977800 Screwdriver blade construction |
| 12/13/1990 | DE3918488A1 Ratchet grip for hand tools - achieves high torque capacity and versatility by embodying ratchet mechanism in hand grip |
| 12/12/1990 | CN2067208U Reciprocating thrust type, variable bulk multi-function screwdriver |
| 11/28/1990 | CN2066373U Screw and screw driver |
| 11/28/1990 | CN2066372U Screw driver with safety insulating sleeve |
| 11/20/1990 | US4970922 Torque driving tool and retainer for driven member |
| 11/13/1990 | CA1276081C Screw driving device |
| 11/07/1990 | CN2065123U Rapid screwdriver |
| 11/06/1990 | USH835 Special tool to secure panel fasteners with seats installed |
| 10/31/1990 | CN2064701U Screwdriver with gripper |
| 10/24/1990 | CN2064288U 方便螺丝刀 Convenient screwdriver |
| 10/11/1990 | DE3911409A1 Screw and screwdriver combination |
| 10/10/1990 | CN2063465U Practicle screwdriver with screwed rod |
| 09/26/1990 | CN2062768U Jack screw and plug screw driver |
| 09/19/1990 | EP0388007A1 A Hand Tool |
| 09/12/1990 | EP0386014A1 Inclinable polygonal wrench |
| 09/12/1990 | CN2061885U 组合旋具 Combination screwdriver |
| 09/11/1990 | WO1990010524A1 Hand held multiple object implement |
| 09/11/1990 | US4955936 Screw driver tip |
| 09/11/1990 | CA2048996A1 Hand held multiple object implement |
| 08/30/1990 | DE3905633A1 Offset screwdriver |
| 08/28/1990 | US4951533 Screwdriver with enhanced grip handle |
| 08/08/1990 | CN2060104U Screwdriver with hand rejector |
| 07/26/1990 | WO1990008267A1 Engaging and interlocking notches for all types of turnable objects |
| 07/12/1990 | WO1990007402A1 Screwdriver blade construction |
| 07/04/1990 | CN2058874U Foldable screwdriver |
| 07/03/1990 | US4938731 Rotatable, self-aligning lobe coupling |
| 06/26/1990 | US4936172 Interlocking screw and screwdriver |
| 06/26/1990 | US4936170 Color coding system |