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经营范围
发明名称
Electronic commutator
摘要
申请公布号
US2884191(A)
申请公布日期
1959.04.28
申请号
US19530346934
申请日期
1953.04.06
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
JR. CORNELIUS F. WEISS,;CAMBIO EDMOND P. DI
分类号
G06F9/32
主分类号
G06F9/32
代理机构
代理人
主权项
地址
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