Improvements in or relating to devices for closing and opening hatchways or openings on board ships, in railway cars and the like,申请号GB19570023165-传众专利搜索

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发明名称	Improvements in or relating to devices for closing and opening hatchways or openings on board ships, in railway cars and the like
摘要
申请公布号	GB825496(A)	申请公布日期	1959.12.16
申请号	GB19570023165	申请日期	1957.07.22
申请人	INTERNATIONAL MAC GREGOR ORGANIZATION (I.M.G.O.)	发明人
分类号	B61D39/00;B63B19/18	主分类号	B61D39/00
代理机构		代理人
主权项
地址

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