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经营范围
发明名称
Binocular comparison microscope
摘要
申请公布号
US2674152(A)
申请公布日期
1954.04.06
申请号
US19520296340
申请日期
1952.06.30
申请人
JOHN C. EPPERSON, SR.
发明人
WILKINSON RUDOLPH P.
分类号
G02B21/20
主分类号
G02B21/20
代理机构
代理人
主权项
地址
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