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发明名称
Photograph and letter press
摘要
申请公布号
US2399857(A)
申请公布日期
1946.05.07
申请号
US19440566468
申请日期
1944.12.04
申请人
CONNORS JOHN T
发明人
CONNORS JOHN T.
分类号
B30B9/00
主分类号
B30B9/00
代理机构
代理人
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