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G Echevarria Y Cia
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G Echevarria Y Cia
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Priority to ES146320ApriorityCriticalpatent/ES146320A3/en
Publication of ES146320A3publicationCriticalpatent/ES146320A3/en
ES146320A1938-11-281938-11-28
A procedure for the manufacture of various objects, by injection of previously pulverized plastic materials.
ExpiredES146320A3
(en)