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发明名称
Improvements in or relating to photometers
摘要
申请公布号
GB582511(A)
申请公布日期
1946.11.19
申请号
GB19440003301
申请日期
1944.02.22
申请人
OLDHAM & SON LIMITED;ALEC OSWALD ROBERTS
发明人
分类号
G01J1/42
主分类号
G01J1/42
代理机构
代理人
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