Single column elevator device,申请号US19450628787-传众专利搜索

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发明名称	Single column elevator device
摘要
申请公布号	US2527897(A)	申请公布日期	1950.10.31
申请号	US19450628787	申请日期	1945.11.15
申请人	EARL TODD	发明人	TODD EARL
分类号	B66B9/02	主分类号	B66B9/02
代理机构		代理人
主权项
地址

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