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发明名称
Animated sign
摘要
申请公布号
US2102243(A)
申请公布日期
1937.12.14
申请号
US19350039360
申请日期
1935.09.06
申请人
SERVICE DEVICES, INCORPORATED
发明人
DEVENTER HARRY R. VAN;SHIVELY JOHN J.
分类号
G09F11/295
主分类号
G09F11/295
代理机构
代理人
主权项
地址
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