Bomb shelter ventilation apparatus,申请号US19610157412-传众专利搜索

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发明名称	Bomb shelter ventilation apparatus
摘要
申请公布号	US3103154(A)	申请公布日期	1963.09.10
申请号	US19610157412	申请日期	1961.12.06
申请人	ROSENFELD MORTON M	发明人	ROSENFELD MORTON M.
分类号	E04H9/04;F24F7/00	主分类号	E04H9/04
代理机构		代理人
主权项
地址

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