Granted Patent
Utility
US 4,283,680 · App. 06/015,013
Electrical bridge balancing circuit
Inventor:
Bruce G. Kerr
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Feb 26, 1979
Inventor
Bruce G. Kerr
Assignee (at issue)
Goring Kerr Limited
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.