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发明名称
Verfahren zum Herstellen von Stollen oder Tunneln aus vorgefertigten Betonrohren
摘要
申请公布号
DE1658772(B1)
申请公布日期
1970.01.29
申请号
DE19681658772
申请日期
1968.01.30
申请人
WEISS PAUL
发明人
WEISS PAUL
分类号
E21D9/00
主分类号
E21D9/00
代理机构
代理人
主权项
地址
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