JPH01126652U - - Google Patents
Info
- Publication number
- JPH01126652U JPH01126652U JP1693688U JP1693688U JPH01126652U JP H01126652 U JPH01126652 U JP H01126652U JP 1693688 U JP1693688 U JP 1693688U JP 1693688 U JP1693688 U JP 1693688U JP H01126652 U JPH01126652 U JP H01126652U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- absence information
- outputs
- absence
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1693688U JPH01126652U (zh) | 1988-02-09 | 1988-02-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1693688U JPH01126652U (zh) | 1988-02-09 | 1988-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01126652U true JPH01126652U (zh) | 1989-08-30 |
Family
ID=31230299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1693688U Pending JPH01126652U (zh) | 1988-02-09 | 1988-02-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01126652U (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018137545A (ja) * | 2017-02-20 | 2018-08-30 | アイホン株式会社 | インターホン装置 |
-
1988
- 1988-02-09 JP JP1693688U patent/JPH01126652U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018137545A (ja) * | 2017-02-20 | 2018-08-30 | アイホン株式会社 | インターホン装置 |
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