Granted Patent
Utility
US 4,425,791 · App. 06/330,151
Computer based engine analyzer with hardware cylinder counter
Inventor:
Michael J. Kling, III
Patented Case
View Patent ↗
Granted: Jan 17, 1984
Filed: Dec 14, 1981
Inventor
Michael J. Kling, III
Assignee (at issue)
Bear Automotive Service Equipment Company
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.