Improvements in or relating to telephone transmitters,申请号GB19390007816-传众专利搜索

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发明名称	Improvements in or relating to telephone transmitters
摘要
申请公布号	GB513561(A)	申请公布日期	1939.10.16
申请号	GB19390007816	申请日期	1938.04.06
申请人	STANDARD TELEPHONES AND CABLES LIMITED;LYNDALL CROSSTHWAITE POCOCK;HUGH SPENCE LEMAN	发明人
分类号	H04R1/22;H04R21/02	主分类号	H04R1/22
代理机构		代理人
主权项
地址

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