Improvements in or relating to road surface, gully or like gratings,申请号GB19340027778-传众专利搜索

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发明名称	Improvements in or relating to road surface, gully or like gratings
摘要
申请公布号	GB441225(A)	申请公布日期	1936.01.15
申请号	GB19340027778	申请日期	1934.09.28
申请人	JOHN WILLIAM NELSON;WILFRED SALKELD	发明人
分类号	E03F5/06	主分类号	E03F5/06
代理机构		代理人
主权项
地址

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