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Individual
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Individual
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Priority to ES46065ApriorityCriticalpatent/ES46065A1/en
Publication of ES46065A1publicationCriticalpatent/ES46065A1/en
ES46065A1909-08-021909-08-02
Procedure for the manufacture of refractory and indestructible filaments for incandescent lamp sleeves.
ExpiredES46065A1
(en)