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摘要
申请公布号
US3320066(A)
申请公布日期
1967.05.16
申请号
US19660577155
申请日期
1966.09.06
申请人
发明人
分类号
D21H17/28;D21H17/30;D21H17/31;D21H17/32;D21H17/55;D21H23/00;G03C1/775
主分类号
D21H17/28
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代理人
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