Boat trailer with retractable wheels,申请号US19670617222-传众专利搜索

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发明名称	Boat trailer with retractable wheels
摘要
申请公布号	US3414917(A)	申请公布日期	1968.12.10
申请号	US19670617222	申请日期	1967.02.20
申请人	EDGAR W. HARRINGTON	发明人	HARRINGTON EDGAR W.
分类号	B63C13/00	主分类号	B63C13/00
代理机构		代理人
主权项
地址

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