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经营范围
发明名称
Walking crutch
摘要
申请公布号
US2707477(A)
申请公布日期
1955.05.03
申请号
US19500157799
申请日期
1950.04.24
申请人
KNOX CHAPIN GERALD
发明人
CHAPIN GERALD KNOX
分类号
A61H3/02
主分类号
A61H3/02
代理机构
代理人
主权项
地址
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