Granted Patent
Utility
US 4,617,846 · App. 06/703,068
Interchangeable tool head for a nc machine
Inventor:
Wilfried Horsch
Patented Case
View Patent ↗
Granted: Oct 21, 1986
Filed: Feb 19, 1985
Inventor
Wilfried Horsch
Assignee (at issue)
GTE Valeron Corporation
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.