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发明名称
Im Erdboden verlegte Kanalrohrleitung
摘要
申请公布号
DE1143155(B)
申请公布日期
1963.01.31
申请号
DE1956S051795
申请日期
1956.12.31
申请人
DR.-ING. HABIL. FERDINAND SIEMONSEN
发明人
SIEMONSEN DR.-ING. HABIL. FERDINAND
分类号
E03F3/04;F16L7/00
主分类号
E03F3/04
代理机构
代理人
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