Means for controlling telephone answering devices,申请号GB19540005105-传众专利搜索

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发明名称	Means for controlling telephone answering devices
摘要
申请公布号	GB756759(A)	申请公布日期	1956.09.12
申请号	GB19540005105	申请日期	1954.02.22
申请人	HARRY RANDOLPH VAN DEVENTER	发明人
分类号	H04M1/64;H04M1/65	主分类号	H04M1/64
代理机构		代理人
主权项
地址

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