Automatic ventilator window,申请号US19590858892-传众专利搜索

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发明名称	Automatic ventilator window
摘要
申请公布号	US3034416(A)	申请公布日期	1962.05.15
申请号	US19590858892	申请日期	1959.12.11
申请人	POWELL GEORGE A	发明人	POWELL GEORGE A.
分类号	E06B7/02	主分类号	E06B7/02
代理机构		代理人
主权项
地址

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