Automatic steering device for barges and like vessels,申请号US19330681079-传众专利搜索

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发明名称	Automatic steering device for barges and like vessels
摘要
申请公布号	US1968577(A)	申请公布日期	1934.07.31
申请号	US19330681079	申请日期	1933.07.19
申请人	JOHN H. MATHIS COMPANY	发明人	TAYLOR GEORGE R.
分类号	B63B21/56;B63B21/58;B63H25/04	主分类号	B63B21/56
代理机构		代理人
主权项
地址

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