JPH034149B2 - - Google Patents
Info
- Publication number
- JPH034149B2 JPH034149B2 JP58053855A JP5385583A JPH034149B2 JP H034149 B2 JPH034149 B2 JP H034149B2 JP 58053855 A JP58053855 A JP 58053855A JP 5385583 A JP5385583 A JP 5385583A JP H034149 B2 JPH034149 B2 JP H034149B2
- Authority
- JP
- Japan
- Prior art keywords
- switch
- circuit
- channel selection
- intercom device
- reset
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58053855A JPS59181764A (ja) | 1983-03-31 | 1983-03-31 | インタ−ホン装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58053855A JPS59181764A (ja) | 1983-03-31 | 1983-03-31 | インタ−ホン装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59181764A JPS59181764A (ja) | 1984-10-16 |
| JPH034149B2 true JPH034149B2 (it) | 1991-01-22 |
Family
ID=12954381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58053855A Granted JPS59181764A (ja) | 1983-03-31 | 1983-03-31 | インタ−ホン装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59181764A (it) |
-
1983
- 1983-03-31 JP JP58053855A patent/JPS59181764A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59181764A (ja) | 1984-10-16 |
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