| 发明名称 |
TELEPHONE SET OSCILLATOR |
| 摘要 |
PURPOSE:To facilitate the frequency adjustment for the key telephone set using the push-button dial as well as to simplify the coil production by deleting the effect of the floating capacity generating from the connection line at the switch section. |
| 申请公布号 |
JPS533107(A) |
申请公布日期 |
1978.01.12 |
| 申请号 |
JP19760076524 |
申请日期 |
1976.06.30 |
| 申请人 |
IWATSU ELECTRIC CO LTD;NIPPON TELEGRAPH & TELEPHONE;OKI ELECTRIC IND CO LTD;TOKYO SHIBAURA ELECTRIC CO;NIPPON ELECTRIC CO;HITACHI LTD;FUJITSU LTD |
发明人 |
YAMAGISHI FUJIO;UENO KATSUTO;NAKAZAWA HAJIME;TAJIYOU TADASHI;IYOSUMI KENICHI;YOKOO TOSHIO;HIRAKAWA MAKOTO;FUKAZAWA HIDEO |
| 分类号 |
H04Q3/58;H03B5/12;H04M1/50 |
主分类号 |
H04Q3/58 |
| 代理机构 |
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