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经营范围
发明名称
Telephone queuing system
摘要
申请公布号
GB1048859(A)
申请公布日期
1966.11.23
申请号
GB19650034719
申请日期
1965.08.13
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
ARSENEAU ROGER EDWARD;BEREZNAK JOHN
分类号
H04M3/523
主分类号
H04M3/523
代理机构
代理人
主权项
地址
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