Granted Patent
Utility
US 4,793,167 · App. 07/057,325
Roller swaging machine
Inventors:
Mark J. Beiley, Makram T. Mikhail
Patented Case
View Patent ↗
Granted: Dec 27, 1988
Filed: Jun 2, 1987
Inventors
Mark J. Beiley
Makram T. Mikhail
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.