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摘要
申请公布号
NL7012145(A)
申请公布日期
1971.03.02
申请号
NL19700012145
申请日期
1970.08.17
申请人
发明人
分类号
D21F1/44;D04H1/72;D21F1/00;D21F11/00;D21J5/00;(IPC1-7):D21F1/44
主分类号
D21F1/44
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代理人
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