Coder for pulse code modulation systems,申请号US19490127739-传众专利搜索

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发明名称	Coder for pulse code modulation systems
摘要
申请公布号	US2617980(A)	申请公布日期	1952.11.11
申请号	US19490127739	申请日期	1949.11.16
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	GRAY FRANK
分类号	H03M1/00	主分类号	H03M1/00
代理机构		代理人
主权项
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