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Individual
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Individual
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Priority to ES20274ApriorityCriticalpatent/ES20274A1/en
Publication of ES20274A1publicationCriticalpatent/ES20274A1/en
ES20274A1897-01-211897-01-21
Improvements in the means or apparatus used in the production, storage and application of acetylene gas.
ExpiredES20274A1
(en)