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经营范围
发明名称
PLASMA ELECTRON GUN
摘要
申请公布号
JPH0620631(A)
申请公布日期
1994.01.28
申请号
JP19920174248
申请日期
1992.07.01
申请人
JEOL LTD
发明人
OTANI TADAYOSHI
分类号
H01J37/077;H05H7/08;(IPC1-7):H01J37/077
主分类号
H01J37/077
代理机构
代理人
主权项
地址
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