Granted Patent
Utility
US 4,220,427 · App. 05/872,156
Apparatus for guiding continuous chip formed in lathing
Inventors:
Keiichi Kimura, Eimei Negishi
Patented Case
View Patent ↗
Granted: Sep 2, 1980
Filed: Jan 25, 1978
Inventors
Keiichi Kimura
Eimei Negishi
Assignee (at issue)
Nippon Kogaku K.K.
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.