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发明名称
Geschlossener Kappschuh zur Abstuetzung der Kappschiene gegen den sie tragenden Stempel
摘要
申请公布号
DE531961(C)
申请公布日期
1931.08.19
申请号
DENDATM112259D
申请日期
申请人
MAX MAY
发明人
分类号
E21D11/34
主分类号
E21D11/34
代理机构
代理人
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地址
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