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发明名称
Advertising sign
摘要
申请公布号
US1953756(A)
申请公布日期
1934.04.03
申请号
US19330698604
申请日期
1933.11.18
申请人
HENNESSEY
发明人
HENNESSEY STEPHEN W.;KARTCHESKE FREDERICK W.
分类号
G09F21/04
主分类号
G09F21/04
代理机构
代理人
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