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发明名称
Traffic signaling device
摘要
申请公布号
US2095928(A)
申请公布日期
1937.10.12
申请号
US19300436959
申请日期
1930.03.19
申请人
FRED C. BOLTZ;ALBERT A. ROSSMAN
发明人
FERGUSON PAUL M.
分类号
G08G1/096
主分类号
G08G1/096
代理机构
代理人
主权项
地址
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