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 ES52957ApriorityCriticalpatent/ES52957A1/en
Publication of ES52957A1publicationCriticalpatent/ES52957A1/en
ES52957A1912-05-041912-05-04
An arrangement that regulates the gas pressure, to obtain a pressure in proportion to the amount of gas used.
ExpiredES52957A1
(en)