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发明名称
VORRICHTUNG ZUM VERLEGEN VON ROEHREN IN GRAEBEN ODER GRUBEN MIT TRAPEZFOERMIGEN PROFIL.
摘要
申请公布号
DE1891229(U)
申请公布日期
1964.04.16
申请号
DE196400N5904U
申请日期
1964.02.13
申请人
N. V. HANDEL MIJ. "WERIMEX"
发明人
分类号
主分类号
代理机构
代理人
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地址
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