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发明名称
Verfahren zur Herstellung von Bauelementen
摘要
申请公布号
DE2132897(B1)
申请公布日期
1972.09.21
申请号
DE19712132897
申请日期
1971.07.02
申请人
C.KELLER U. CO.
发明人
分类号
E04C2/04
主分类号
E04C2/04
代理机构
代理人
主权项
地址
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