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经营范围
发明名称
INSTRUCTIONAL SIGNAL
摘要
申请公布号
GB1365154(A)
申请公布日期
1974.08.29
申请号
GB19710032218
申请日期
1971.07.08
申请人
MINNESOTA MINING MFG CO
发明人
分类号
G08G1/095;(IPC1-7):G09F19/14;E01F9/10;G08G1/09
主分类号
G08G1/095
代理机构
代理人
主权项
地址
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