Granted Patent
Utility
US 3,970,935 · App. 05/550,596
Wide-range digital reluctance tachometer
Inventors:
Jack Beery, Daniel A. Wisner
Patented Case
View Patent ↗
Granted: Jul 20, 1976
Filed: Feb 18, 1975
Inventors
Jack Beery
Daniel A. Wisner
Assignee (at issue)
Burroughs, Inc.
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.