Granted Patent
Utility
US 4,646,349 · App. 06/700,378
Equipment for the stereophonic sound reproduction in a television receiver
Inventor:
Bernhard Puls
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Feb 11, 1985
Inventor
Bernhard Puls
Assignee (at issue)
Standard Elektrik Lorens Aktiengesellschaft
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.