PREPARATION OF ELECTRET TRANSDUCER ELEMENTS USING LOW ENERGY ELECTRON BEAM,申请号CAD914315-传众专利搜索

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发明名称	PREPARATION OF ELECTRET TRANSDUCER ELEMENTS USING LOW ENERGY ELECTRON BEAM
摘要
申请公布号	CA914315(A)	申请公布日期	1972.11.07
申请号	CAD914315	申请日期
申请人	WESTERN ELECTRIC COMPANY, INCORPORATED	发明人	JAMES E. WEST;GERHARD M. SESSLER
分类号	H01G7/02;H04R19/04;(IPC1-7):H01G7/02	主分类号	H01G7/02
代理机构		代理人
主权项
地址

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