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经营范围
发明名称
BIPOLAR DC TRANSMISSION DEVICE
摘要
申请公布号
JPS55122432(A)
申请公布日期
1980.09.20
申请号
JP19790029916
申请日期
1979.03.16
申请人
HITACHI LTD
发明人
SUGAWARA SHIYOUICHI
分类号
H02J1/00;H02H3/12;H02H3/26
主分类号
H02J1/00
代理机构
代理人
主权项
地址
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