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发明名称
étrier de sûreté
摘要
申请公布号
FR715689(A)
申请公布日期
1931.12.07
申请号
FRD715689
申请日期
1931.04.18
申请人
发明人
WINKEL HERMANN
分类号
B68C3/02
主分类号
B68C3/02
代理机构
代理人
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