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发明名称
Advertising sign
摘要
申请公布号
US2121829(A)
申请公布日期
1938.06.28
申请号
US19350043742
申请日期
1935.10.05
申请人
SEAMAN;WALTER T. WELLS;LLOYD SPENCER
发明人
SEAMAN RICHARD H.;SCHWENDEN CARL A.
分类号
H05B41/24
主分类号
H05B41/24
代理机构
代理人
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地址
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