Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Individual
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Individual
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Priority to ES149685ApriorityCriticalpatent/ES149685A3/es
Publication of ES149685A3publicationCriticalpatent/ES149685A3/es
ES149685A1940-05-141940-05-14Procedimiento para fabricar las pastillas refractarias para mecheros de alumbrado por acetileno u otros gases
ExpiredES149685A3
(es)