Machine for and method of assembling springs,申请号US19260090892-传众专利搜索

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发明名称	Machine for and method of assembling springs
摘要
申请公布号	US1813993(A)	申请公布日期	1931.07.14
申请号	US19260090892	申请日期	1926.02.26
申请人	SIMMONS COMPANY	发明人	GAIL JOHN F.
分类号	B21F35/00;B68G9/00	主分类号	B21F35/00
代理机构		代理人
主权项
地址

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