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Priority to ES0074063UpriorityCriticalpatent/ES74063Y/en
Publication of ES74063UpublicationCriticalpatent/ES74063U/en
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Publication of ES74063YpublicationCriticalpatent/ES74063Y/en
Improved gear change for bicycles, characterized by comprising the assembly of an oscillating lever on the terminal end of the rear axle. It is imprisoned by a removable and regulating nut and contains in turn an elastic rod, determinative of the recovery of said arm. (Machine-translation by Google Translate, not legally binding)
ES0074063U1959-06-021959-06-02
Gearshift perfected for bicycles
ExpiredES74063Y
(en)