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Application filed by Josef SlezakfiledCriticalJosef Slezak
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Publication of AT134347BpublicationCriticalpatent/AT134347B/de
AT134347D1932-06-301932-06-30Vorrichtung zur Änderung der wirksamen Kurbellänge bei einseitig belasteten Kurbeltrieben, insbesondere von Fahrrädern.
AT134347B
(de)