ES141237A1 - Un procedimiento para producir y revelar capas estables sensibilizadas con sales de metales pesados, especialmente sobre papeles heliográficos.
- Google Patents
Un procedimiento para producir y revelar capas estables sensibilizadas con sales de metales pesados, especialmente sobre papeles heliográficos.
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Kolimann Ludwig
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Kolimann Ludwig
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Priority to ES141237ApriorityCriticalpatent/ES141237A1/es
Publication of ES141237A1publicationCriticalpatent/ES141237A1/es
ES141237A1936-01-181936-01-18Un procedimiento para producir y revelar capas estables sensibilizadas con sales de metales pesados, especialmente sobre papeles heliográficos.
ExpiredES141237A1
(es)