Granted Patent
Utility
US 4,467,232 · App. 06/492,921
Direct-current machine
Inventors:
Winfried Eichhorn, Kurt Eclercy
Patented Case
View Patent ↗
Granted: Aug 21, 1984
Filed: May 9, 1983
Inventors
Winfried Eichhorn
Kurt Eclercy
Assignee (at issue)
International Standard Electric 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.