Granted Patent
Utility
US 4,368,647 · App. 06/169,148
Reciprocating driving device
Inventor:
Hirofumi Sakaguchi
Patented Case
View Patent ↗
Granted: Jan 18, 1983
Filed: Jul 15, 1980
Inventor
Hirofumi Sakaguchi
Assignee (at issue)
Konishiroku Photo Industry Co., 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.