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经营范围
发明名称
MAGNETIC AMPLIFIER
摘要
申请公布号
JPS538764(A)
申请公布日期
1978.01.26
申请号
JP19760082952
申请日期
1976.07.14
申请人
HITACHI LTD
发明人
KATAYAMA YASUNORI;KIWAKI HISAKATSU
分类号
H03F9/00
主分类号
H03F9/00
代理机构
代理人
主权项
地址
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