Improvements in or relating to hollow beams, joists and like parts for the construction of floors and floors so produced,申请号GB19540003823-传众专利搜索

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发明名称	Improvements in or relating to hollow beams, joists and like parts for the construction of floors and floors so produced
摘要
申请公布号	GB739631(A)	申请公布日期	1955.11.02
申请号	GB19540003823	申请日期	1954.02.09
申请人	LODEWIJK SPUR;VICTOR VERREYDT	发明人
分类号	E04B5/06	主分类号	E04B5/06
代理机构		代理人
主权项
地址

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