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发明名称
Social correspondence card construction
摘要
申请公布号
US3352481(A)
申请公布日期
1967.11.14
申请号
US19660542316
申请日期
1966.04.13
申请人
FRED KIRCHOF
发明人
KIRCHOF FRED
分类号
B42D15/08
主分类号
B42D15/08
代理机构
代理人
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