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经营范围
发明名称
Invalid walker
摘要
申请公布号
US2519096(A)
申请公布日期
1950.08.15
申请号
US19470721853
申请日期
1947.01.13
申请人
FORREST ADDITON
发明人
ADDITON FORREST
分类号
A61H3/00
主分类号
A61H3/00
代理机构
代理人
主权项
地址
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