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发明名称
REFRACTOMETER FOR TESTING GEMSTONES
摘要
申请公布号
GB2085611(B)
申请公布日期
1984.08.08
申请号
GB19810030013
申请日期
1981.10.05
申请人
EICKHORST MANFRED
发明人
分类号
G01N21/87;(IPC1-7):G01N21/43
主分类号
G01N21/87
代理机构
代理人
主权项
地址
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