Granted Patent
Utility
US 4,429,975 · App. 06/379,757
Control circuit for cameras having internal and external power supplies
Inventors:
Kazuo Shiozawa, Hideaki Sakai
Patented Case
View Patent ↗
Granted: Feb 7, 1984
Filed: May 19, 1982
Inventors
Kazuo Shiozawa
Hideaki Sakai
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.