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发明名称
摘要
申请公布号
SU494544(A1)
申请公布日期
1975.12.05
申请号
SU19721824581
申请日期
1972.08.25
申请人
发明人
分类号
(IPC1-7):F16C17/16
主分类号
(IPC1-7):F16C17/16
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