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发明名称
摘要
申请公布号
DE1944240(C3)
申请公布日期
1979.02.22
申请号
DE19691944240
申请日期
1969.08.27
申请人
MINNESOTA MINING AND MANUFACTURING CO., SAINT PAUL, MINN. (V.ST.A.)
发明人
EDWARDS, WILLIAM HARRY, ST. PAUL, MINN. (V.ST.A.)
分类号
G11B23/027;(IPC1-7):B65H75/16;G11B23/10
主分类号
G11B23/027
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