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发明名称
Dispositif d'accrochage et décrochage appliqué aux appareils de levage par poulie ou aux palans de tous genres
摘要
申请公布号
FR705751(A)
申请公布日期
1931.06.12
申请号
FRD705751
申请日期
1930.10.31
申请人
发明人
PARNET LOUIS
分类号
B66D3/10
主分类号
B66D3/10
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