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发明名称
Laminated card
摘要
申请公布号
US2545804(A)
申请公布日期
1951.03.20
申请号
US19480031520
申请日期
1948.06.07
申请人
BUTLER ROY E
发明人
BUTLER ROY E.
分类号
B42D15/10
主分类号
B42D15/10
代理机构
代理人
主权项
地址
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