Earth auger construction,申请号US19640383464-传众专利搜索

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发明名称	Earth auger construction
摘要
申请公布号	US3235018(A)	申请公布日期	1966.02.15
申请号	US19640383464	申请日期	1964.07.17
申请人	GERALD A. PETERSEN;ANITA E. PETERSEN	发明人	TROEPPL WILLIAM M.
分类号	E02F9/28;E21B10/44	主分类号	E02F9/28
代理机构		代理人
主权项
地址

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