Automatic ventilator screen,申请号US19460652897-传众专利搜索

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发明名称	Automatic ventilator screen
摘要
申请公布号	US2507171(A)	申请公布日期	1950.05.09
申请号	US19460652897	申请日期	1946.03.06
申请人	MORTEN CHARLES A	发明人	MORTEN CHARLES A.
分类号	E06B9/54	主分类号	E06B9/54
代理机构		代理人
主权项
地址

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