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经营范围
发明名称
Eye exerciser
摘要
申请公布号
US2317197(A)
申请公布日期
1943.04.20
申请号
US19420454847
申请日期
1942.08.14
申请人
JACOBSON ARTHUR E
发明人
JACOBSON ARTHUR E.
分类号
A61H5/00
主分类号
A61H5/00
代理机构
代理人
主权项
地址
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