Coupling system for sectional floating dry docks,申请号US19520281727-传众专利搜索

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发明名称	Coupling system for sectional floating dry docks
摘要
申请公布号	US2705933(A)	申请公布日期	1955.04.12
申请号	US19520281727	申请日期	1952.04.11
申请人	FREDERIC R. HARRIS, INC.	发明人	QUIRIN EDWARD J.
分类号	B63C1/04	主分类号	B63C1/04
代理机构		代理人
主权项
地址

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