Power-operated posthole digging machine,申请号US19450635703-传众专利搜索

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发明名称	Power-operated posthole digging machine
摘要
申请公布号	US2534628(A)	申请公布日期	1950.12.19
申请号	US19450635703	申请日期	1945.12.18
申请人	ALBERT SHACKLETTE	发明人	SHACKLETTE ALBERT
分类号	E21B7/02	主分类号	E21B7/02
代理机构		代理人
主权项
地址

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