Granted Patent
Utility
US 4,697,901 · App. 06/819,609
Parallax correcting device in the finder of a camera
Inventors:
Hiroshi Wakabayashi, Koichi Wakamiya
Patented Case
View Patent ↗
Granted: Oct 6, 1987
Filed: Jan 17, 1986
Inventors
Hiroshi Wakabayashi
Koichi Wakamiya
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.