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发明名称
PERFECCIONAMIENTOS EN LA CONSTRUCCIËN DE CADENAS-SIERRAS
摘要
申请公布号
ES235022(A1)
申请公布日期
1957.11.16
申请号
ES19220002350
申请日期
1957.04.13
申请人
FONT TARDA, JUAN
发明人
分类号
B27B;(IPC1-7):B27B
主分类号
B27B
代理机构
代理人
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