Boat stern vacuum relieving attachment,申请号US19540432106-传众专利搜索

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发明名称	Boat stern vacuum relieving attachment
摘要
申请公布号	US2727486(A)	申请公布日期	1955.12.20
申请号	US19540432106	申请日期	1954.05.25
申请人	DUNNING LUTHER T	发明人	DUNNING LUTHER T.
分类号	B63B1/38	主分类号	B63B1/38
代理机构		代理人
主权项
地址

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