Baby stair trainer,申请号US19570670449-传众专利搜索

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发明名称	Baby stair trainer
摘要
申请公布号	US2871914(A)	申请公布日期	1959.02.03
申请号	US19570670449	申请日期	1957.07.08
申请人	TIMONEY ROBERT E	发明人	TIMONEY ROBERT E.
分类号	A47D13/04	主分类号	A47D13/04
代理机构		代理人
主权项
地址

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