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发明名称
Improvements relating to mattresses
摘要
申请公布号
GB328244(A)
申请公布日期
1930.04.22
申请号
GB19280034252
申请日期
1928.11.21
申请人
ARTHUR MARSDEN;GEORGE RUSSELL MARSDEN
发明人
分类号
A47C23/057
主分类号
A47C23/057
代理机构
代理人
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