Improvements in and relating to hatchways and covers,申请号GB19310025047-传众专利搜索

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发明名称	Improvements in and relating to hatchways and covers
摘要
申请公布号	GB370809(A)	申请公布日期	1932.04.14
申请号	GB19310025047	申请日期	1931.09.07
申请人	ADOLF JAN DRENTH	发明人
分类号	B63B19/24	主分类号	B63B19/24
代理机构		代理人
主权项
地址

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