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经营范围
发明名称
THYRISTOR CHOPPER CONTROLLER
摘要
申请公布号
JPS5454227(A)
申请公布日期
1979.04.28
申请号
JP19770119915
申请日期
1977.10.07
申请人
HITACHI LTD
发明人
OOMAE TSUTOMU;MARUMOTO KATSUJI
分类号
H02M3/135
主分类号
H02M3/135
代理机构
代理人
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地址
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