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经营范围
发明名称
Arrangement for code signalling in automatic telephone exchanges
摘要
申请公布号
US3260801(A)
申请公布日期
1966.07.12
申请号
US19630269422
申请日期
1963.04.01
申请人
TELEFONAKTIEBOLAGET L M ERICSSON
发明人
BUCHMAYER MANFRED;LILLSUNDE BERNHARD K. V.
分类号
H04Q1/38;H04Q3/42
主分类号
H04Q1/38
代理机构
代理人
主权项
地址
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