ES109836A1 - Un procedimiento para obtener negativas o positivas de valoración exacta de colorido, especialmente para la impresión plana.
- Google Patents
Un procedimiento para obtener negativas o positivas de valoración exacta de colorido, especialmente para la impresión plana.
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Meisenbach Riffarth & Co A G
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Meisenbach Riffarth & Co A G
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Priority to ES109836ApriorityCriticalpatent/ES109836A1/es
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ES109836A1928-10-231928-10-23Un procedimiento para obtener negativas o positivas de valoración exacta de colorido, especialmente para la impresión plana.
ExpiredES109836A1
(es)