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Individual
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Individual
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Priority to ES65545ApriorityCriticalpatent/ES65545A1/es
Publication of ES65545A1publicationCriticalpatent/ES65545A1/es
ES65545A1917-10-161917-10-16Un procedimiento para encender y apagar instantánea y simultáneamente los mecheros de gas del alumbrado.
ExpiredES65545A1
(es)