Suspended elevator scraper attachment,申请号US19620218989-传众专利搜索

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发明名称	Suspended elevator scraper attachment
摘要
申请公布号	US3170254(A)	申请公布日期	1965.02.23
申请号	US19620218989	申请日期	1962.08.23
申请人	MARTIN WILLIAM E	发明人	MARTIN WILLIAM E.
分类号	E02F3/64	主分类号	E02F3/64
代理机构		代理人
主权项
地址

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