An electret and method of making the same,申请号GB19660046767-传众专利搜索

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发明名称	An electret and method of making the same
摘要
申请公布号	GB1135413(A)	申请公布日期	1968.12.04
申请号	GB19660046767	申请日期	1966.10.19
申请人	PHILIP MORRIS INCORPORATED	发明人
分类号	H01G7/02	主分类号	H01G7/02
代理机构		代理人
主权项
地址

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