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经营范围
发明名称
Poteau de mine compressible
摘要
申请公布号
FR858244(A)
申请公布日期
1940.11.20
申请号
FRD858244
申请日期
1939.07.25
申请人
发明人
JUNIOR ALBERT WETTE
分类号
E21D15/32
主分类号
E21D15/32
代理机构
代理人
主权项
地址
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