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Application filed by Bohumil Novotny, Palik FrantisekfiledCriticalBohumil Novotny
Priority to CS842394ApriorityCriticalpatent/CS239743B1/en
Publication of CS239484A1publicationCriticalpatent/CS239484A1/en
Publication of CS239743B1publicationCriticalpatent/CS239743B1/en
CS842394A1984-03-301984-03-30
Pneumatic device reducing the impact of the pantograph passive resistances to the contact pressure to the contact rail
CS239743B1
(en)