Endless loop type cutter chain,申请号US19510217332-传众专利搜索

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发明名称	Endless loop type cutter chain
摘要
申请公布号	US2807452(A)	申请公布日期	1957.09.24
申请号	US19510217332	申请日期	1951.03.24
申请人	JOY MANUFACTURING COMPANY	发明人	JOY JOSEPH F.
分类号	E21C25/36	主分类号	E21C25/36
代理机构		代理人
主权项
地址

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