Improvements in electromechanical delay lines,申请号GB19480005953-传众专利搜索

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发明名称	Improvements in electromechanical delay lines
摘要
申请公布号	GB644505(A)	申请公布日期	1950.10.11
申请号	GB19480005953	申请日期	1948.02.27
申请人	THE DIRECTOR OF THE OFFICE OF TECHNICAL SERVICES OF THE DEPARTMENT OF COMMERCE	发明人
分类号	H03H9/125	主分类号	H03H9/125
代理机构		代理人
主权项
地址

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