Assignee
MICROBOX DR WELP GMBH & CO
DE·4 granted patents·16 citations·filing 1976–1991
Top patents by PatentIndex Score
4 records- 0172US4121236AAperture card camera with device for spraying the exposed filmMICROBOX DR WELP GMBH & CO·Filed 1976·Granted Oct 17, 1978·15 cites·9 claims
- 0228US4199249AMethod and apparatus for duplicating by means of ammonia gasMICROBOX DR WELP GMBH & CO·Filed 1977·Granted Apr 22, 1980·1 cites·9 claims
- 0327US5121157ACad aperture card laser plottersMICROBOX DR WELP GMBH & CO·Filed 1991·Granted Jun 9, 1992·0 cites·8 claims
- 0417US5202839AProcess for the storing of drawing data by means of a cad film-card laser plotter, a microfilm card and a cad film-card laser for its implementationMICROBOX DR WELP GMBH & CO·Filed 1990·Granted Apr 13, 1993·0 cites·16 claims
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