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发明名称
Vorrichtung zur Fussverbreiterung von Ortpfaehlen aus Beton od.dgl.
摘要
申请公布号
DE1950927(A1)
申请公布日期
1971.04.29
申请号
DE19691950927
申请日期
1969.10.09
申请人
TIEDEMANN KARL
发明人
TIEDEMANN KARL
分类号
E02D5/44;E21B10/32
主分类号
E02D5/44
代理机构
代理人
主权项
地址
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