Indicator for direction of movement of a boat,申请号US19610084221-传众专利搜索

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发明名称	Indicator for direction of movement of a boat
摘要
申请公布号	US3072091(A)	申请公布日期	1963.01.08
申请号	US19610084221	申请日期	1961.01.23
申请人	BOOTH WILLIAM M	发明人	BOOTH WILLIAM M.
分类号	B63H25/36	主分类号	B63H25/36
代理机构		代理人
主权项
地址

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