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Application filed by Ladislav RumlfiledCriticalLadislav Ruml
Priority to CS275076ApriorityCriticalpatent/CS187679B1/cs
Publication of CS187679B1publicationCriticalpatent/CS187679B1/cs
CS275076A1976-04-261976-04-26Connexion of the circuit for the interference of the signal "stop"with the impulse signal at the mine devices
CS187679B1
(en)