Granted Patent
Utility
US 4,684,769 · App. 06/904,488
Manual clutch switching system
Inventors:
Willi K. Beck, Lincoln V. Danielson, Andrew Strange
Patented Case
View Patent ↗
Granted: Aug 4, 1987
Filed: Sep 8, 1986
Inventors
Willi K. Beck
Lincoln V. Danielson
Andrew Strange
Assignee (at issue)
Joseph Pollak Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.