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发明名称
摘要
申请公布号
DE2108460(A1)
申请公布日期
1972.09.07
申请号
DE19712108460
申请日期
1971.02.22
申请人
发明人
分类号
F16J9/06;F16J9/20
主分类号
F16J9/06
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代理人
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地址
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