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发明名称
Vorrichtung zum Entwaessern von Daechern od.dgl.
摘要
申请公布号
DE1659313(A1)
申请公布日期
1971.01.21
申请号
DE19671659313
申请日期
1967.09.20
申请人
GEBR. GROHMANN KG
发明人
EMIL GROHMANN,DIPL.-ING.
分类号
E04D13/04
主分类号
E04D13/04
代理机构
代理人
主权项
地址
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