IP Library › Granted Patent US 4,280,027
Granted Patent Utility
US 4,280,027 · App. 06/153,445

Switch blade mechanism and multi-arrangement

Inventors: John Comerford, Robert E. Zimmer
Patented Case View Patent ↗
Granted: Jul 21, 1981 Filed: May 27, 1980
Inventors
John Comerford
Robert E. Zimmer
Assignee (at issue)
The Singer Company Limited

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Quick Facts
Patent No.
US 4,280,027
App. No.
06/153,445
Filed
1980-05-27
Granted
1981-07-21
Kind
A