Granted Patent
Utility
US 5,167,478 · App. 07/504,371
Tool holder with radial tool change mechanism
Inventor:
Valdas S. Ramunas
Patented Case
View Patent ↗
Granted: Dec 1, 1992
Filed: Apr 3, 1990
Inventor
Valdas S. Ramunas
Assignee (at issue)
KENNAMETAL INC.
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.