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发明名称
Verfahren zum Abdichten von Betonrohrdruckleitungen
摘要
申请公布号
CH325217(A)
申请公布日期
1957.10.31
申请号
CHD325217
申请日期
1954.11.05
申请人
INTERNATIONALE SIEGWARTBALKEN-GESELLSCHAFT
发明人
LEOPOLD,DIPL.-ING. WIDMER,HANS
分类号
F16L21/00;F16L58/10
主分类号
F16L21/00
代理机构
代理人
主权项
地址
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