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发明名称
Stair-walking aid
摘要
申请公布号
US2782796(A)
申请公布日期
1957.02.26
申请号
US19540465480
申请日期
1954.10.29
申请人
SCOTT BLUE MARGARET
发明人
BLUE MARGARET SCOTT
分类号
A61H3/00;A61H3/02
主分类号
A61H3/00
代理机构
代理人
主权项
地址
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