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发明名称
Vision trainer
摘要
申请公布号
US3168894(A)
申请公布日期
1965.02.09
申请号
US19620206677
申请日期
1962.07.02
申请人
HARRY HOLLANDER
发明人
HOLLANDER HARRY
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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