Granted Patent
Utility
US 5,963,711 · App. 08/727,357
Watch outer case polishing apparatus and general purpose polishing apparatus
Inventor:
Akira Shimada
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: Oct 8, 1996
Inventor
Akira Shimada
Assignee (at issue)
Seiko Seiki Kabushiki Kaisha
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.