Granted Patent
Utility
US 4,652,108 · App. 06/726,233
Driving device for illuminating lamp of flash apparatus
Inventors:
Yoshikazu Iida, Hisatoshi Takahata
Patented Case
View Patent ↗
Granted: Mar 24, 1987
Filed: Apr 23, 1985
Inventors
Yoshikazu Iida
Hisatoshi Takahata
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.