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经营范围
发明名称
RESEAU DE COMMUTATION A DEUX FILS
摘要
申请公布号
BE760659(A1)
申请公布日期
1971.05.27
申请号
BE19700760659
申请日期
1970.12.21
申请人
INTERNATIONAL BUSINESS MACHINES CORP., ARMONK 10 504, NEW YORK, (E.U.A.),
发明人
J. GARCIA;COMPAGNIE IBM FRANCE.
分类号
H03K17/00;H04Q3/52;(IPC1-7):H04M/
主分类号
H03K17/00
代理机构
代理人
主权项
地址
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