APPARATUS FOR MAKING PISTON RINGS,申请号CAD317480-传众专利搜索

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发明名称	APPARATUS FOR MAKING PISTON RINGS
摘要
申请公布号	CA317480(A)	申请公布日期	1931.11.24
申请号	CAD317480	申请日期
申请人	THE STEELEX COMPANY	发明人	LEWIS C. MARSHALL
分类号		主分类号
代理机构		代理人
主权项
地址

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