Granted Patent
Utility
US 4,698,637 · App. 06/259,928
Device for pulse modulation automatic control
Inventor:
Giuseppe Bertocchi
Patented Case
View Patent ↗
Granted: Oct 6, 1987
Filed: May 4, 1981
Inventor
Giuseppe Bertocchi
Assignee (at issue)
International Standard Electric 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.