Shutter structure,申请号US19550513284-传众专利搜索

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发明名称	Shutter structure
摘要
申请公布号	US2867011(A)	申请公布日期	1959.01.06
申请号	US19550513284	申请日期	1955.06.06
申请人	BIRMINGHAM INDUSTRIES, INC.	发明人	BECKER NATHAN
分类号	E06B9/04	主分类号	E06B9/04
代理机构		代理人
主权项
地址

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