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发明名称
Mattress elevators
摘要
申请公布号
US3021533(A)
申请公布日期
1962.02.20
申请号
US19600037967
申请日期
1960.06.22
申请人
EMERY WILLIAM M
发明人
EMERY WILLIAM M.
分类号
A47C20/00;A47C20/02
主分类号
A47C20/00
代理机构
代理人
主权项
地址
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