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Individual
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Individual
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Priority to ES137169ApriorityCriticalpatent/ES137169A1/en
Publication of ES137169A1publicationCriticalpatent/ES137169A1/en
ES137169A1935-02-081935-02-08
Improvements in the making of backgrounds engraved on copper cylinders for textile printing by direct reprinting.
ExpiredES137169A1
(en)