Granted Patent
Utility
US 4,586,810 · App. 06/204,775
Engineering drawing electrophotocopier
Inventor:
Benzion Landa
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Nov 7, 1980
Inventor
Benzion Landa
Assignee (at issue)
Savin 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.