Digging apparatus,申请号US19610120359-传众专利搜索

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发明名称	Digging apparatus
摘要
申请公布号	US3148788(A)	申请公布日期	1964.09.15
申请号	US19610120359	申请日期	1961.06.28
申请人	RAY FERWERDA	发明人	FERWERDA RAY
分类号	E02F3/30	主分类号	E02F3/30
代理机构		代理人
主权项
地址

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