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发明名称
摘要
申请公布号
BE715814(A)
申请公布日期
1968.10.16
申请号
BED715814
申请日期
1968.05.29
申请人
发明人
分类号
E02D7/12;F02M59/22
主分类号
E02D7/12
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代理人
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地址
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