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经营范围
发明名称
TRAFFIC SIGNAL PLUMBING APPARATUS
摘要
申请公布号
US3478994(A)
申请公布日期
1969.11.18
申请号
USD3478994
申请日期
1967.10.06
申请人
NEIL E. RYALL
发明人
NEIL E. RYALL
分类号
G08G1/095;(IPC1-7):G09F9/34
主分类号
G08G1/095
代理机构
代理人
主权项
地址
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