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发明名称
Walking aid and chair combination
摘要
申请公布号
US2776701(A)
申请公布日期
1957.01.08
申请号
US19540447536
申请日期
1954.08.03
申请人
DENIS ALBERT P
发明人
DENIS ALBERT P.
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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