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发明名称
摘要
申请公布号
SU506412(A1)
申请公布日期
1976.03.15
申请号
SU19731954227
申请日期
1973.08.01
申请人
发明人
分类号
A61F9/00;(IPC1-7):A61F9/00
主分类号
A61F9/00
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代理人
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