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发明名称
摘要
申请公布号
GB1303738(A)
申请公布日期
1973.01.17
申请号
GBD1303738
申请日期
1970.06.08
申请人
发明人
分类号
A61F2/64;(IPC1-7):F16F7/08;A61F1/04
主分类号
A61F2/64
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代理人
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