发明名称 TELEPHONEEUSE PORTABLE POWER SOURCE UNIT
摘要 PURPOSE:The self-generating generation set and power source for various switchboards are made small size and light weight through high-frequency AC power supply system. Thus, normal telephone switchboard function can be maintained at the time of trouble occurrence of power source apparatus.
申请公布号 JPS5249707(A) 申请公布日期 1977.04.21
申请号 JP19750125356 申请日期 1975.10.20
申请人 NIPPON DENSHIN DENWA KOSHA;SANYOU DENKI KK 发明人 FURUKAWA SHIYOUZOU;MOGI KAZUO
分类号 H04Q1/28;H04M19/00 主分类号 H04Q1/28
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