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Individual
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Individual
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Priority to ES135215ApriorityCriticalpatent/ES135215A1/es
Publication of ES135215A1publicationCriticalpatent/ES135215A1/es
ES135215A1934-08-011934-08-01Un sistema que permite precintar los contadores de gas corrientes, evitando el tener que añadirles agua periódicamente.
ExpiredES135215A1
(es)