Granted Patent
Utility
US 4,340,290 · App. 06/229,936
Electric rewind device for a camera
Inventors:
Nobuo Matsukawa, Kenji Sekine
Patented Case
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Granted: Jul 20, 1982
Filed: Jan 30, 1981
Inventors
Nobuo Matsukawa
Kenji Sekine
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.