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发明名称
摘要
申请公布号
DE2112580(C3)
申请公布日期
1982.01.14
申请号
DE19712112580
申请日期
1971.03.16
申请人
HITACHI, LTD.;JAPANESE NATIONAL RAILWAYS, TOKYO, JP
发明人
INADA, OSAMU, TOKYO, JP;TACHIBANA, KYOZO, KATSUTA, JP
分类号
H02M1/12;G05F1/56;H02P7/292
主分类号
H02M1/12
代理机构
代理人
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地址
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