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发明名称
Ophthalmic device
摘要
申请公布号
US2534655(A)
申请公布日期
1950.12.19
申请号
US19470728393
申请日期
1947.02.14
申请人
POLAROID CORPORATION
发明人
BARATELLI CHARLES A.
分类号
G02C7/10;G02C7/12
主分类号
G02C7/10
代理机构
代理人
主权项
地址
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