Granted Patent
Utility
US 4,772,163 · App. 07/119,814
Machine tool spindle and toolholders suitable therefor
Inventors:
Gerhard Scheer, Erich Raff
Patented Case
View Patent ↗
Granted: Sep 20, 1988
Filed: Nov 12, 1987
Inventors
Gerhard Scheer
Erich Raff
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.