Rooter for excavators,申请号US19440552314-传众专利搜索

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发明名称	Rooter for excavators
摘要
申请公布号	US2397521(A)	申请公布日期	1946.04.02
申请号	US19440552314	申请日期	1944.09.01
申请人	THE CLEVELAND TRENCHER COMPANY	发明人	ASKUE ALBERT R.
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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