Improvements in floor supporting devices,申请号GB19360009248-传众专利搜索

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发明名称	Improvements in floor supporting devices
摘要
申请公布号	GB472059(A)	申请公布日期	1937.09.16
申请号	GB19360009248	申请日期	1936.03.28
申请人	JOHN FRANCIS GEORGE SMITH	发明人
分类号	E04F15/20	主分类号	E04F15/20
代理机构		代理人
主权项
地址

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