A machine for cleaning ditches,申请号GB19470016052-传众专利搜索

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发明名称	A machine for cleaning ditches
摘要
申请公布号	GB631275(A)	申请公布日期	1949.10.31
申请号	GB19470016052	申请日期	1947.06.18
申请人	FRANK PACHECO	发明人
分类号	E02F5/02;E02F5/08	主分类号	E02F5/02
代理机构		代理人
主权项
地址

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