Assignee
LANGNER FRED R
3 granted patents·19 citations·filing 1978–1979
Top patents by PatentIndex Score
3 records- 0160US4193683AMethod and apparatus for filtering developing liquid in a photocopierLANGNER FRED R·Filed 1978·Granted Mar 18, 1980·12 cites·7 claims
- 0237US4265445APhotocopier collatorLANGNER FRED R·Filed 1979·Granted May 5, 1981·6 cites·11 claims
- 0323US4288070AChute return mechanism for a photocopier collatorLANGNER FRED R·Filed 1979·Granted Sep 8, 1981·1 cites·10 claims
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