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 ES68820ApriorityCriticalpatent/ES68820A3/en
Publication of ES68820A3publicationCriticalpatent/ES68820A3/en
ES68820A1919-01-141919-01-14
An industrial procedure consisting of the manufacture of special iron rods for the autogenous welding of iron.
ExpiredES68820A3
(en)