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Priority to ES38229ApriorityCriticalpatent/ES38229A1/es
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ES38229A1906-04-301906-04-30Mejoras en los medios para hacer funcionar las agujas de los ferrocarriles y tranvías y otros aparatos análogos.
ExpiredES38229A1
(es)
Mejoras en los medios empleados para hacer funcionar las agujas de los ferrocarriles y tranvías, los mecanismos de señales y demás disposiciones análogas.