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经营范围
发明名称
Hospital bed and the like
摘要
申请公布号
US2287552(A)
申请公布日期
1942.06.23
申请号
US19380248055
申请日期
1938.12.28
申请人
DRY JOHN D
发明人
DRY JOHN D.
分类号
A61G7/02
主分类号
A61G7/02
代理机构
代理人
主权项
地址
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