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发明名称
Crutch
摘要
申请公布号
US1769167(A)
申请公布日期
1930.07.01
申请号
US19260127432
申请日期
1926.08.05
申请人
GEORGE SCHEIHING
发明人
SCHEIHING GEORGE
分类号
A61H3/00;A61H3/02
主分类号
A61H3/00
代理机构
代理人
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地址
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