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发明名称
Verfahren zur Herstellung von gespannten Traegern oder gespannten Decken und danach hergestellte Traeger oder Decken
摘要
申请公布号
DE852140(C)
申请公布日期
1952.10.13
申请号
DE1948P009598D
申请日期
1948.10.02
申请人
SPERLE EUGEN DIPL.-ING.
发明人
SPERLE EUGEN DIPL.-ING.
分类号
B28B23/04;E04C3/26
主分类号
B28B23/04
代理机构
代理人
主权项
地址
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