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发明名称
Magnifier
摘要
申请公布号
US1964243(A)
申请公布日期
1934.06.26
申请号
US19330650743
申请日期
1933.01.09
申请人
HENRY BEHR
发明人
BEHR HENRY
分类号
G02C7/08
主分类号
G02C7/08
代理机构
代理人
主权项
地址
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