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发明名称
METHOD AND APPARATUS FOR PROVIDING A PLURALITY OF SPECIAL SERVICES
摘要
申请公布号
EP0151117(B1)
申请公布日期
1987.11.11
申请号
EP19830902874
申请日期
1983.08.26
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
LOTTES, ROSANNA, MAY;SWINEHART, GRANT, EDWARD
分类号
H04M3/48;H04M3/42;H04M3/44;H04Q3/00;(IPC1-7):H04M3/44
主分类号
H04M3/48
代理机构
代理人
主权项
地址
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