发明名称 22WIRE*44WIRE LINK CONNECTING SYSTEM
摘要 PURPOSE:To secure the 4-wire connection control as well as the 2-wire connection control without increasing the holding time and the number of the working link, by using both the 2-wire and 4-wire links through a switching relay.
申请公布号 JPS5390703(A) 申请公布日期 1978.08.09
申请号 JP19770004369 申请日期 1977.01.20
申请人 NIPPON ELECTRIC CO 发明人 KIMURA YUKIO;MINATO DAISAKU;SOGA SENJI
分类号 H04Q3/555;H04Q3/68 主分类号 H04Q3/555
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