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发明名称
Improvements relating to back rests for beds
摘要
申请公布号
GB778135(A)
申请公布日期
1957.07.03
申请号
GB19540010391
申请日期
1954.04.08
申请人
H. S. FRASER LIMITED;JOHN ARTHUR FRASER;WILLIAM ROBERT DENHAM
发明人
分类号
A47C20/04
主分类号
A47C20/04
代理机构
代理人
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