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发明名称
Optical testing apparatus
摘要
申请公布号
US1920428(A)
申请公布日期
1933.08.01
申请号
US19300482755
申请日期
1930.09.18
申请人
GEORGE PANK HAROLD
发明人
PANK HAROLD GEORGE
分类号
A61B3/06
主分类号
A61B3/06
代理机构
代理人
主权项
地址
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