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经营范围
发明名称
TELEPHONE EXCHANGE
摘要
申请公布号
DE3174860(D1)
申请公布日期
1986.07.24
申请号
DE19813174860
申请日期
1981.12.09
申请人
PAULSSON, KURT;SVEDBERG, VALTER;TROK, BENIAMIN;ANDERSSON, JAN
发明人
PAULSSON, KURT
分类号
H04M3/42;(IPC1-7):H04M3/42
主分类号
H04M3/42
代理机构
代理人
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