Improvements in apparatus for constructing concrete floors,申请号GB19290025961-传众专利搜索

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发明名称	Improvements in apparatus for constructing concrete floors
摘要
申请公布号	GB337111(A)	申请公布日期	1930.10.30
申请号	GB19290025961	申请日期	1929.08.26
申请人	HENRY WILLIAM ROOS	发明人
分类号	E04G11/48	主分类号	E04G11/48
代理机构		代理人
主权项
地址

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