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发明名称
摘要
申请公布号
PL69536(B1)
申请公布日期
1973.04.30
申请号
PL19700143011
申请日期
1970.09.04
申请人
发明人
分类号
F16N27/00;(IPC1-7):F16N27/00
主分类号
F16N27/00
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代理人
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