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发明名称
METHOD OF MAKING NEAR-POINT CARDS FOR BINOCULAR REFRACTION
摘要
申请公布号
US3692604(A)
申请公布日期
1972.09.19
申请号
USD3692604
申请日期
1970.10.12
申请人
AMERICAN OPTICAL CORP.
发明人
BERNARD GROLMAN
分类号
A61B3/02;(IPC1-7):B32B31/04;B32B31/14
主分类号
A61B3/02
代理机构
代理人
主权项
地址
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