Granted Patent
Utility
US 4,606,528 · App. 06/727,148
Motorized hand torch with improved brake mechanism
Inventor:
Roger D. Zwicker
Patented Case
View Patent ↗
Granted: Aug 19, 1986
Filed: Apr 25, 1985
Inventor
Roger D. Zwicker
Assignee (at issue)
VICTOR 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.