Device for digging an excavation,申请号US19600077406-传众专利搜索

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发明名称	Device for digging an excavation
摘要
申请公布号	US3061957(A)	申请公布日期	1962.11.06
申请号	US19600077406	申请日期	1960.12.21
申请人	BEAT FEHLMANN HANS	发明人	FEHLMANN HANS BEAT
分类号	B66C3/16;E02F3/413;E02F3/47	主分类号	B66C3/16
代理机构		代理人
主权项
地址

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