Improvements relating to mechanical excavators,申请号GB19570011461-传众专利搜索

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发明名称	Improvements relating to mechanical excavators
摘要
申请公布号	GB858421(A)	申请公布日期	1961.01.11
申请号	GB19570011461	申请日期	1957.04.09
申请人	MID-WESTERN INDUSTRIES, INC.	发明人
分类号	E02F3/32;E02F3/38;E02F9/08;E02F9/16	主分类号	E02F3/32
代理机构		代理人
主权项
地址

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