A ditch-digging or -clearing attachment for a tractor,申请号GB19590015480-传众专利搜索

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发明名称	A ditch-digging or -clearing attachment for a tractor
摘要
申请公布号	GB921382(A)	申请公布日期	1963.03.20
申请号	GB19590015480	申请日期	1959.05.06
申请人	RICHARD SMALLEY	发明人
分类号	E02F5/02	主分类号	E02F5/02
代理机构		代理人
主权项
地址

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