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发明名称
Mehrteiliges Vortreibrohr mit Kernpfahl
摘要
申请公布号
DE506726(C)
申请公布日期
1930.09.08
申请号
DE1928SC86020D
申请日期
1928.04.05
申请人
HEINRICH SCHMALJOHANN
发明人
分类号
E02D5/66;E02D7/30
主分类号
E02D5/66
代理机构
代理人
主权项
地址
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