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发明名称
摘要
申请公布号
DE2028231(A1)
申请公布日期
1971.07.08
申请号
DE19702028231
申请日期
1970.06.09
申请人
发明人
分类号
B60B39/04;(IPC1-7):E01H10/00
主分类号
B60B39/04
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代理人
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地址
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