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发明名称
Improved service indicator
摘要
申请公布号
GB1115162(A)
申请公布日期
1968.05.29
申请号
GB19650026126
申请日期
1965.06.21
申请人
U.S. SERVICATOR CORPORATION
发明人
分类号
B60Q9/00;G04C3/18;G07C3/00
主分类号
B60Q9/00
代理机构
代理人
主权项
地址
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