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经营范围
发明名称
Refractometer with fixed viewing system and prism
摘要
申请公布号
US2633052(A)
申请公布日期
1953.03.31
申请号
US19500195764
申请日期
1950.11.15
申请人
ZEISS-OPTON OPTISCHE WERKE OBERKOCHEN G.M.B.H.
发明人
VIEWEG ALWIN
分类号
G01N21/43
主分类号
G01N21/43
代理机构
代理人
主权项
地址
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