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发明名称
Abstandhalter fuer die Eiseneinlagen von Eisenbetonbauten
摘要
申请公布号
DE520481(C)
申请公布日期
1931.03.11
申请号
DENDATSC87820D
申请日期
申请人
MAX SCHENKER
发明人
分类号
E04C5/18
主分类号
E04C5/18
代理机构
代理人
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