Granted Patent
Utility
US 4,451,879 · App. 06/311,260
Circuit for providing a common setpoint for manual and automatic regulation of a process control system
Inventors:
Norman D. Welch, John W. Woestman
Patented Case
View Patent ↗
Granted: May 29, 1984
Filed: Oct 14, 1981
Inventors
Norman D. Welch
John W. Woestman
Assignee (at issue)
RCA 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.