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发明名称
Mauerhohlstein und Verfahren zum Herstellen von Bauwerken
摘要
申请公布号
DE823506(C)
申请公布日期
1951.12.03
申请号
DE1949M001086
申请日期
1949.12.21
申请人
GEORG WECK
发明人
WECK GEORG
分类号
E04B2/02;E04B2/42
主分类号
E04B2/02
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代理人
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