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发明名称
摘要
申请公布号
SU462729(A1)
申请公布日期
1975.03.05
申请号
SU19721773183
申请日期
1972.04.14
申请人
发明人
分类号
(IPC1-7):B29H1/00
主分类号
(IPC1-7):B29H1/00
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