Bucket tooth unit,申请号US19400337222-传众专利搜索

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法人/股东/高管

发明名称	Bucket tooth unit
摘要
申请公布号	US2259456(A)	申请公布日期	1941.10.21
申请号	US19400337222	申请日期	1940.05.25
申请人	CRAWFORD ARTHUR N	发明人	CRAWFORD ARTHUR N.
分类号	E02F9/28	主分类号	E02F9/28
代理机构		代理人
主权项
地址

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