IMPROVEMENTS IN OR RELATING TO TELEPHONE INSTRUMENTS,申请号GB19670032021-传众专利搜索

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发明名称	IMPROVEMENTS IN OR RELATING TO TELEPHONE INSTRUMENTS
摘要
申请公布号	GB1223421(A)	申请公布日期	1971.02.24
申请号	GB19670032021	申请日期	1967.07.12
申请人	ASSOCIATED ELECTRICAL INDUSTRIES LIMITED	发明人	RONALD ERNEST CHARLES BROWN
分类号	H04M1/02;H04M19/04	主分类号	H04M1/02
代理机构		代理人
主权项
地址

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