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发明名称
Sample card
摘要
申请公布号
US1788826(A)
申请公布日期
1931.01.13
申请号
US19280271078
申请日期
1928.04.18
申请人
PEERLESS SAMPLE CARD CO. INC.
发明人
DOMBER JOSEPH;DOMBER MORRIS
分类号
G09F5/04
主分类号
G09F5/04
代理机构
代理人
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