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发明名称
Portable support for invalids
摘要
申请公布号
US2437778(A)
申请公布日期
1948.03.16
申请号
US19440520745
申请日期
1944.02.02
申请人
THE WALKABOUT COMPANY
发明人
AMES BUTLER
分类号
A61H3/00;A61H3/04
主分类号
A61H3/00
代理机构
代理人
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地址
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