Granted Patent
Utility
US 4,265,574 · App. 06/086,488
Combined boring and milling tool
Inventor:
Otto Eckle
Patented Case
View Patent ↗
Granted: May 5, 1981
Filed: Oct 19, 1979
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.