Sparkproof flooring and the like,申请号US19430474953-传众专利搜索

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发明名称	Sparkproof flooring and the like
摘要
申请公布号	US2413610(A)	申请公布日期	1946.12.31
申请号	US19430474953	申请日期	1943.02.06
申请人	THE FEDERAL FLOORING CORPORATION	发明人	DONELSON WILLIAM W.
分类号	E04F15/02;H05F3/02	主分类号	E04F15/02
代理机构		代理人
主权项
地址

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