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发明名称
摘要
申请公布号
JPS50154818(U)
申请公布日期
1975.12.22
申请号
JP19740066328U
申请日期
1974.06.10
申请人
发明人
分类号
H03F3/72;H02M7/12;H02M7/21;H03F3/20;(IPC1-7):H02M7/12
主分类号
H03F3/72
代理机构
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