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经营范围
发明名称
Retinoscope or like instrument for ascertaining objectively the refraction of eyes
摘要
申请公布号
US1944406(A)
申请公布日期
1934.01.23
申请号
US19320610777
申请日期
1932.05.12
申请人
RICHARD CROFTON CECIL
发明人
CROFTON CECIL RICHARD
分类号
A61B3/12
主分类号
A61B3/12
代理机构
代理人
主权项
地址
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