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经营范围
发明名称
Improvements in spectrographic light sources
摘要
申请公布号
GB602959(A)
申请公布日期
1948.06.07
申请号
GB19450030338
申请日期
1945.11.13
申请人
JOHN DRUMMOND CRAGGS;JOHN MILLAR MEEK;CHARLES JOSEPH BRAUDO;METROPOLITIAN-VICKERS ELECTRICAL COMPANY LIMITED
发明人
分类号
G01N21/67
主分类号
G01N21/67
代理机构
代理人
主权项
地址
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