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经营范围
发明名称
Adjustable crutch
摘要
申请公布号
US2241481(A)
申请公布日期
1941.05.13
申请号
US19390289417
申请日期
1939.08.10
申请人
SCHROEDER FRANK H
发明人
SCHROEDER FRANK H.
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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