Granted Patent
Utility
US 4,245,274 · App. 06/003,474
Readout and circuit board with test access
Inventors:
Douglas B. MacDonald, Desi de Perczel
Patented Case
View Patent ↗
Granted: Jan 13, 1981
Filed: Jan 15, 1979
Inventors
Douglas B. MacDonald
Desi de Perczel
Assignee (at issue)
Bally Manufacturing Corporation
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.