Granted Patent
Utility
US 4,525,820 · App. 06/245,512
Function selecting method and system for an audio/video recording and reproducing system
Inventors:
Takashi Enoki, Hiroaki Nakamura, Fujio Nakashima
Patented Case
View Patent ↗
Granted: Jun 25, 1985
Filed: Mar 19, 1981
Inventors
Takashi Enoki
Hiroaki Nakamura
Fujio Nakashima
Assignee (at issue)
HITACHI, LTD.
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.