Improvements in or relating to mattresses and the like,申请号GB19450009683-传众专利搜索

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发明名称	Improvements in or relating to mattresses and the like
摘要
申请公布号	GB594326(A)	申请公布日期	1947.11.07
申请号	GB19450009683	申请日期	1945.04.18
申请人	JOHN DALE BOYD	发明人
分类号	A47C7/74;A47C21/04	主分类号	A47C7/74
代理机构		代理人
主权项
地址

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