Selective answering and commanding telephone circuit,申请号US19620195706-传众专利搜索

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发明名称	Selective answering and commanding telephone circuit
摘要
申请公布号	US3308239(A)	申请公布日期	1967.03.07
申请号	US19620195706	申请日期	1962.05.18
申请人	ROYAL BUSINESS FUNDS CORPORATION	发明人	WALDMAN HERBERT;LAMSON WADE P.;MERI KALJU
分类号	H04M1/652	主分类号	H04M1/652
代理机构		代理人
主权项
地址

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