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经营范围
发明名称
AUTOMATIC TELEPHONE EXCHANGE SWITCHING SYSTEMS
摘要
申请公布号
US3423539(A)
申请公布日期
1969.01.21
申请号
USD3423539
申请日期
1965.11.05
申请人
GENERAL ELECTRIC CO. LTD.
发明人
PETER COLIN PAGE;RONALD FRANK ROUS;PAUL SIGRIST;PETER WILLIAM WARD
分类号
H04Q3/54;(IPC1-7):H04M3/00
主分类号
H04Q3/54
代理机构
代理人
主权项
地址
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