Granted Patent
Utility
US 5,250,896 · App. 07/729,469
Hand-held magnetic contact tachometer with toothed rotatable wheel
Inventors:
Daniel Mieczkowski, Robert J. Holmen, Robert D. Johnson, John Stanley
Patented Case
View Patent ↗
Granted: Oct 5, 1993
Filed: Jul 12, 1991
Inventors
Daniel Mieczkowski
Robert J. Holmen
Robert D. Johnson
John Stanley
Assignee (at issue)
Snap-on Tools 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.