Portable bleacher unit,申请号US19620218644-传众专利搜索

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发明名称	Portable bleacher unit
摘要
申请公布号	US3230907(A)	申请公布日期	1966.01.25
申请号	US19620218644	申请日期	1962.08.22
申请人	IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.	发明人	MORFORD VILAS J.;EGGENBERGER LEWIS
分类号	E04H3/12	主分类号	E04H3/12
代理机构		代理人
主权项
地址

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