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发明名称
Card assembly
摘要
申请公布号
US2379637(A)
申请公布日期
1945.07.03
申请号
US19430476471
申请日期
1943.02.19
申请人
HOFFMANN ALFRED A
发明人
HOFFMANN ALFRED A.
分类号
B42D15/00;B42D15/04
主分类号
B42D15/00
代理机构
代理人
主权项
地址
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