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经营范围
发明名称
ELECTRON MICROSCOPES
摘要
申请公布号
GB1248201(A)
申请公布日期
1971.09.29
申请号
GB19670030551
申请日期
1967.07.03
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
DOUGLAS GEORGE COATES
分类号
H01J37/147;H01J37/295
主分类号
H01J37/147
代理机构
代理人
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