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经营范围
发明名称
DIFFERENTIAL REFRACTOMETERS
摘要
申请公布号
US3539263(A)
申请公布日期
1970.11.10
申请号
USD3539263
申请日期
1968.02.21
申请人
JAMES L. WATERS
发明人
JAMES L. WATERS
分类号
G01N21/41;(IPC1-7):G01N21/46
主分类号
G01N21/41
代理机构
代理人
主权项
地址
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