Granted Patent
Utility
US 4,581,811 · App. 06/713,074
Tool change apparatus for a machine tool
Inventor:
Otto Eckle
Patented Case
View Patent ↗
Granted: Apr 15, 1986
Filed: Mar 15, 1985
Inventor
Otto Eckle
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.