Spring construction and method of making same,申请号US19300451893-传众专利搜索

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发明名称	Spring construction and method of making same
摘要
申请公布号	US1888666(A)	申请公布日期	1932.11.22
申请号	US19300451893	申请日期	1930.05.13
申请人	PEERLESS SPRINGS, INCORPORATED	发明人	HETHERINGTON OLIVER
分类号	A47C23/053	主分类号	A47C23/053
代理机构		代理人
主权项
地址

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