Granted Patent
Utility
US 4,352,206 · App. 06/242,619
Comparison arrangement for a digital tuning system
Inventor:
Felix Aschwanden
Patented Case
View Patent ↗
Granted: Sep 28, 1982
Filed: Mar 11, 1981
Inventor
Felix Aschwanden
Assignee (at issue)
RCA 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.