Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Key-controlled electromagnetic operating mechanism for a lock and the like

Key-controlled electromagnetic operating mechanism for a lock and the like

US Patent 4280118 · Granted Jul 21, 1981

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Connecting arrangement for a clutch-release mechanism2004
Actuation device for a friction clutch2003
Clutch actuation system with auxiliary actuating assembly2003
Viscous coupling with a volumetric-flow setting means2001
Hybrid non-rail tired vehicle with safety mechanism1999
Propulsion system and kit for hybrid motor vehicle1997
Electric road motor vehicle with switchable winding electric motor propulsion sy1997
Torsional oscillation damper1992
Fluid friction clutch1989
Switch lock installation1988
Fluid friction clutch1988
Temperature-dependently controllable fluid friction clutch1987