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发明名称
摘要
申请公布号
DE2015765(A1)
申请公布日期
1970.10.15
申请号
DE19702015765
申请日期
1970.04.02
申请人
发明人
分类号
F04B53/14;F15B15/22;F16J1/00;(IPC1-7):F16J1/00
主分类号
F04B53/14
代理机构
代理人
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地址
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