Granted Patent
Utility
US 4,301,528 · App. 06/043,352
Tone arm mechanism
Inventor:
Dennis A. Leri
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: May 29, 1979
Inventor
Dennis A. Leri
Assignee (at issue)
Teledyne Industries, Inc.
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.