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发明名称
摘要
申请公布号
SU485940(A1)
申请公布日期
1975.09.30
申请号
SU19721810464
申请日期
1972.07.17
申请人
发明人
分类号
B65H75/16;(IPC1-7):B65H75/16
主分类号
B65H75/16
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代理人
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地址
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