Granted Patent
Utility
US 4,772,907 · App. 07/027,821
Unit for collecting developed films in a film developing machine, particularly of industrial kind
Inventor:
Roberto Marson
Patented Case
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Granted: Sep 20, 1988
Filed: Mar 19, 1987
Inventor
Roberto Marson
Assignee (at issue)
Gretag San Marco S.p.A.
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.