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发明名称
Crochet de sécurité automatique pour appareil de levage
摘要
申请公布号
FR718851(A)
申请公布日期
1932.01.29
申请号
FRD718851
申请日期
1931.06.15
申请人
发明人
SAVIGNAC ALBERT
分类号
B66C1/36
主分类号
B66C1/36
代理机构
代理人
主权项
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