Granted Patent
Utility
US 6,203,477 · App. 09/413,882
Cutter changing systems and methods for internal crankshaft miller
Inventor:
Masumi Shimomura
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Oct 7, 1999
Inventor
Masumi Shimomura
Assignee (at issue)
Komatsu Machinery Corporation Ltd.
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.