Improvements relating to mattresses,申请号GB19380031973-传众专利搜索

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发明名称	Improvements relating to mattresses
摘要
申请公布号	GB520307(A)	申请公布日期	1940.04.19
申请号	GB19380031973	申请日期	1938.11.04
申请人	NORMAN DALRYMPLE MATTISON	发明人
分类号	A47C27/06	主分类号	A47C27/06
代理机构		代理人
主权项
地址

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