Granted Patent
Utility
US 4,638,670 · App. 06/766,871
Apparatus for the determination of the distance traveled by a piston in a cylinder
Inventor:
Bernd Moser
Patented Case
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Granted: Jan 27, 1987
Filed: Aug 16, 1985
Inventor
Bernd Moser
Assignee (at issue)
Boge GmbH
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.