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Individual
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Individual
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Priority to ES9613ApriorityCriticalpatent/ES9613A1/en
Publication of ES9613A1publicationCriticalpatent/ES9613A1/en
ES9613A1889-05-181889-05-18
Improvements in the process for manufacturing gas for lighting and heating by means of the apparatus described.
ExpiredES9613A1
(en)