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发明名称
UN SISTEMA DE CAMBIO DE MULTIPLICACIoN DE LA TRANSMISIoN DE CADENA DE LAS BICICLETAS Y DEMáS VELOCiPEDOS
摘要
申请公布号
ES221326(A2)
申请公布日期
1955.09.01
申请号
ES19260002213
申请日期
1955.04.21
申请人
AZAROLA GRESILLON, EMILIO
发明人
分类号
(IPC1-7):F16
主分类号
(IPC1-7):F16
代理机构
代理人
主权项
地址
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