Granted Patent
Utility
US 4,726,111 · App. 06/939,207
Change head for a tool change apparatus
Inventor:
Herbert Schweizer
Patented Case
View Patent ↗
Granted: Feb 23, 1988
Filed: Dec 8, 1986
Inventor
Herbert Schweizer
Assignee (at issue)
Komet Stahlhalter-und Werkzeugfabrik Robert Breuning GmbH
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.