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经营范围
发明名称
Eye exerciser
摘要
申请公布号
US2442255(A)
申请公布日期
1948.05.25
申请号
US19470724015
申请日期
1947.01.24
申请人
WOMACK SAMUEL W
发明人
WOMACK SAMUEL W.
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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