| Patents for B25B 21 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose (7,850) |
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| 02/15/1993 | CA2069556A1 Wrist support for hand-held devices |
| 02/03/1993 | EP0525911A2 Transmission for electrically driven tool |
| 02/03/1993 | CN2126701Y Power-driven structure for screwdriver |
| 02/03/1993 | CA2075146A1 Transmission for electrically driven tool |
| 02/02/1993 | CA1313316C Portable hydrant wrench |
| 01/28/1993 | DE4124787A1 Auf einen passniet aufzuformender schliessring sowie werkzeug dafuer At a calibrated rivet aufzuformender locking ring and tool for |
| 01/26/1993 | US5181575 Impact wrench having torque controlling faculty |
| 01/19/1993 | US5180261 Motor-operated tool |
| 01/19/1993 | US5180042 Torque transmission control device |
| 01/13/1993 | EP0521898A1 Adjustable pressure dual piston impulse clutch |
| 01/12/1993 | US5178046 Screw fastening device |
| 01/05/1993 | US5176593 Speed changing mechanism including planet gears and one-way clutch |
| 01/05/1993 | US5176038 Motion converting mechanism and rotary tool |
| 12/30/1992 | CN1019650B Device for hammering fastening elements into hard material |
| 12/23/1992 | EP0519121A2 Speed changing mechanism including planet gears and one-way clutch |
| 12/22/1992 | US5172772 Hydro-impulse screw tool |
| 12/15/1992 | US5170852 Automatic screw fastening machine |
| 12/15/1992 | US5170851 Electric tool |
| 12/10/1992 | WO1992021469A1 An attachment for a drive shaft of a drill or like rotary tool |
| 12/09/1992 | CN1019365B Device and process for screwing and unscrewing nut on coupling member |
| 12/08/1992 | US5168781 Drive socket |
| 11/19/1992 | EP0504331A4 Fluid-operated wrench |
| 11/10/1992 | US5161624 Tool for driving fastening elements into hard receiving materials |
| 11/10/1992 | US5161437 Device for tightening up nut on bolt |
| 11/04/1992 | EP0511485A1 Locking device for angle head |
| 11/03/1992 | US5159987 Valve construction for automatic shut-off screwdrivers and the like |
| 10/28/1992 | EP0510020A1 Power tool |
| 10/27/1992 | US5158354 Device for screwing and unscrewing screws, bolts and nuts |
| 10/20/1992 | US5156221 Method of and arrangement for controlling the operation of a hand-held electrical device |
| 10/14/1992 | EP0508718A1 Automatic transmission |
| 10/14/1992 | EP0508316A1 Power-driven wrench |
| 10/14/1992 | EP0478760A4 Torque wrench |
| 10/13/1992 | US5155421 Power wrench for tightening screw joints |
| 09/30/1992 | CN2117236U Strength controllable nut spanner |
| 09/24/1992 | DE4208715A1 Electric screwdriver unit - has motorised bit drive shaft and drum to feed screws under it, with adjuster to keep screwing depth constant |
| 09/23/1992 | EP0504331A1 Fluid-operated wrench |
| 09/23/1992 | CN1018371B Power tongs with openable jaws |
| 09/22/1992 | US5149230 Rotating dual attachment receptacle apparatus tool |
| 09/15/1992 | US5147245 Hydraulic torque impulse generator |
| 09/09/1992 | EP0502748A1 Impact Wrench having Torque Controlling Faculty |
| 09/08/1992 | US5145300 Deformable locking fastener and method of use |
| 09/03/1992 | DE4206099A1 Power tool with working parts contained in hollow casing - has separate compartment to hold spare tool insert held in place by spring clip |
| 09/03/1992 | DE4143218A1 Device for connecting screwdriver bits with drive source - consists of two-part socket linked by torque coupling |
| 09/02/1992 | EP0501925A2 Automatic stud driving tool having collarless retention mechanism for driven head |
| 09/01/1992 | US5142952 Ratchet tool |
| 09/01/1992 | US5142951 Torque wrench |
| 08/26/1992 | EP0500511A1 Power wrench |
| 08/25/1992 | US5140874 Fluid-operated wrench |
| 08/25/1992 | CA1306627C Portable screw driver having flexible extension shaft |
| 08/18/1992 | US5139092 Quick change torque multiplier adaptor |
| 08/18/1992 | US5138916 Power operated screwdriver |
| 08/18/1992 | US5138915 Impact pipe wrench |
| 08/12/1992 | EP0498681A2 Reactionless differential rotary driver having optimized output torques |
| 08/11/1992 | US5138243 Switching device for the electric switching of electric tools |
| 08/04/1992 | US5134909 Power driven screwdriver |
| 07/29/1992 | EP0496499A1 Apparatus for placing plastic nuts |
| 07/23/1992 | DE4201015A1 Stand to facilitate powered driving of self-drilling screws - has hand feed lever to increase thrust and uses operator's weight as hold-down force |
| 07/21/1992 | US5131255 Power driven tool |
| 07/14/1992 | US5129465 Screw tightening power tool |
| 07/14/1992 | US5129290 Tool to aid in loosening and/or tightening threaded fastners, particularly in vehicle wheels |
| 07/02/1992 | DE4133483A1 Stroke limiter for automatic screwdriver - allows adjustment of stroke by rotating outer threaded sleeve about inner sleeve having stop |
| 07/01/1992 | EP0492729A1 Tool holder |
| 06/23/1992 | US5123309 Integrated spindle actuator assembly for nut-runners |
| 06/21/1992 | CA2057608A1 Tool holder |
| 06/17/1992 | DE4040140A1 Offset drive for box spanner - has driven gear which can be exchanged for others with central holes to suit different screw sizes |
| 06/17/1992 | DE4038507C1 Device for remotely seating and tightening screw - includes ultrasound test head for measuring longitudinal expansion of screw shaft, used in nuclear reactor installation |
| 06/11/1992 | WO1992009406A1 Hand-held rotary power tool |
| 06/09/1992 | USRE33951 Fluid operated wrench |
| 06/09/1992 | US5119700 Automatic stud driving tool having collarless retention mechanism for driven head |
| 06/09/1992 | US5119554 Pintail ejector assembly for fastener installation tooling |
| 06/04/1992 | DE4038502A1 Hand-operated electric hammer drill - has cup=shaped ratchet with central bore for drive spindle |
| 06/04/1992 | DE4038226A1 Handgefuehrtes kraftdrehwerkzeug The hand-held power tool rotating |
| 06/03/1992 | EP0487926A2 Motor driven tool |
| 06/02/1992 | CA1302127C Method of and apparatus for controlling nut runner |
| 05/21/1992 | DE4036569A1 Screwing tool with motorised head - has opening for nut extending into channel completely through head |
| 05/21/1992 | DE4036267A1 Buttonhole screw with screw driver - has two or more holes punched out of side and has self cutting pins |
| 05/20/1992 | EP0485661A1 A wrench |
| 05/20/1992 | EP0245370B1 Powered pipe wrench |
| 05/20/1992 | CN1061178A Electric toal for screw assemble and disassemble |
| 05/13/1992 | EP0485056A1 Ratcheting tool |
| 05/05/1992 | US5110145 Power tool adaptor |
| 05/05/1992 | US5109738 Handheld screw driving gun |
| 05/05/1992 | US5109736 Automatic assembly machine with steering/up-down control handle |
| 05/05/1992 | US5109735 High strength quick change key type installation tool |
| 04/29/1992 | EP0482227A1 Tool for use in loosening or tightening vehicle wheel fasteners |
| 04/22/1992 | EP0481946A2 Pneumatic power tool |
| 04/22/1992 | CN1060427A Electric impact wrench |
| 04/16/1992 | WO1992005917A1 Fluid-operated wrench |
| 04/15/1992 | EP0480347A2 Self-advancing automatic apparatus for the application of inserts with in-view positioning |
| 04/15/1992 | EP0230461B1 Power driven replaceable socket ratchet wrench |
| 04/15/1992 | CN2101562U Electric quick wrench |
| 04/14/1992 | US5105130 Keyboard controlled multi-function power tool with visual display |
| 04/14/1992 | US5103696 Pressure-operated power wrench |
| 04/08/1992 | EP0479713A2 Electric wrench |
| 04/08/1992 | EP0479382A1 Screw driving device for screws connected by a screw connecting strip |
| 04/08/1992 | EP0478760A1 Torque wrench. |
| 04/07/1992 | US5101694 Apparatus for screwing in and out studs or bolts of large dimensions |
| 04/01/1992 | CN2100288U Automatic band-type setting device for screws |
| 03/25/1992 | EP0476999A1 Power driven screwdriver |
| 03/25/1992 | CN2099644U Hydraulic setting spanner |