发明名称 MEASUREMENT SYSTEM OF WORKING CONDITION
摘要 PURPOSE:To secure high-accuracy data extraction regardless of the scale of reservation time for each unit of the telephone exchange, and thus to measure the working condition to achieve economization of the measurement unit.
申请公布号 JPS52131408(A) 申请公布日期 1977.11.04
申请号 JP19760049100 申请日期 1976.04.27
申请人 NIPPON ELECTRIC CO;NIPPON TELEGRAPH & TELEPHONE;OKI ELECTRIC IND CO LTD;HITACHI LTD;FUJITSU LTD 发明人 CHIBA MASAYASU;SUZUKI SHINICHI;USHIWATARI ATSUSHI;TAKEMORI SATOSHI;MATSUZAWA TERUMASA
分类号 H04M3/36;(IPC1-7):04M3/36 主分类号 H04M3/36
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