Granted Patent
Utility
US 4,434,686 · App. 06/364,726
Adjusting apparatus
Inventor:
Dennis M. Ryan
Patented Case
View Patent ↗
Granted: Mar 6, 1984
Filed: Apr 2, 1982
Inventor
Dennis M. Ryan
Assignee (at issue)
Ampex 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.