Granted Patent
Utility
US 5,174,176 · App. 07/803,588
Reversible rachet wrench with integrated dual pawl and spring and cam unit
Inventor:
Bert Krivec
Patented Case
View Patent ↗
Granted: Dec 29, 1992
Filed: Dec 9, 1991
Inventor
Bert Krivec
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.