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发明名称
Improvements in bed-lifts
摘要
申请公布号
GB775181(A)
申请公布日期
1957.05.22
申请号
GB19540011134
申请日期
1954.04.15
申请人
AUBREY AITKEN CRAWSHAW
发明人
分类号
A61G7/10
主分类号
A61G7/10
代理机构
代理人
主权项
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