JP2553861Y2 - 電話回線用センサユニット - Google Patents
電話回線用センサユニットInfo
- Publication number
- JP2553861Y2 JP2553861Y2 JP1989142472U JP14247289U JP2553861Y2 JP 2553861 Y2 JP2553861 Y2 JP 2553861Y2 JP 1989142472 U JP1989142472 U JP 1989142472U JP 14247289 U JP14247289 U JP 14247289U JP 2553861 Y2 JP2553861 Y2 JP 2553861Y2
- Authority
- JP
- Japan
- Prior art keywords
- output
- line
- telephone line
- amplifier
- telephone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 20
- 230000005389 magnetism Effects 0.000 claims description 7
- 238000004804 winding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989142472U JP2553861Y2 (ja) | 1989-12-07 | 1989-12-07 | 電話回線用センサユニット |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989142472U JP2553861Y2 (ja) | 1989-12-07 | 1989-12-07 | 電話回線用センサユニット |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0382956U JPH0382956U (enrdf_load_html_response) | 1991-08-23 |
JP2553861Y2 true JP2553861Y2 (ja) | 1997-11-12 |
Family
ID=31689297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1989142472U Expired - Lifetime JP2553861Y2 (ja) | 1989-12-07 | 1989-12-07 | 電話回線用センサユニット |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2553861Y2 (enrdf_load_html_response) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5041918B2 (ja) * | 2007-08-21 | 2012-10-03 | 中国電力株式会社 | シート体支持構造 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59211371A (ja) * | 1983-05-16 | 1984-11-30 | Fujitsu Ltd | 着信検出回路 |
JPS611959U (ja) * | 1984-06-07 | 1986-01-08 | 日本電気ホームエレクトロニクス株式会社 | 電話回線接続用端末装置 |
-
1989
- 1989-12-07 JP JP1989142472U patent/JP2553861Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0382956U (enrdf_load_html_response) | 1991-08-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |