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经营范围
发明名称
Invalid's bed
摘要
申请公布号
US2483612(A)
申请公布日期
1949.10.04
申请号
US19450622388
申请日期
1945.10.15
申请人
THE BEEM FOUNDATION
发明人
BEEM MARVEL 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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