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发明名称
Mailing piece
摘要
申请公布号
US2669464(A)
申请公布日期
1954.02.16
申请号
US19500160436
申请日期
1950.05.06
申请人
LAY KENNETH S;LAY BERNADINE F
发明人
LAY KENNETH S.;LAY BERNADINE F.
分类号
B42D15/08
主分类号
B42D15/08
代理机构
代理人
主权项
地址
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