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经营范围
发明名称
Improvements in or relating to mass spectroscopes
摘要
申请公布号
GB1004945(A)
申请公布日期
1965.09.22
申请号
GB19630007813
申请日期
1963.02.27
申请人
HEINZ EWALD
发明人
分类号
H01J49/28
主分类号
H01J49/28
代理机构
代理人
主权项
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