Multiple-section spring,申请号US19270161974-传众专利搜索

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发明名称	Multiple-section spring
摘要
申请公布号	US1747725(A)	申请公布日期	1930.02.18
申请号	US19270161974	申请日期	1927.01.19
申请人	THE STERLING SPRING COMPANY	发明人	MONTEITH JOHN C.
分类号	B60G11/12	主分类号	B60G11/12
代理机构		代理人
主权项
地址

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