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经营范围
发明名称
Improvements in or relating to spectroscopes
摘要
申请公布号
GB760729(A)
申请公布日期
1956.11.07
申请号
GB19530035112
申请日期
1953.12.16
申请人
R. GRAESSER LIMITED
发明人
SINGLETON FRANK;COLLIER GEOFFREY LOUIS
分类号
G01J3/433;G01N21/31
主分类号
G01J3/433
代理机构
代理人
主权项
地址
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