JPS63152343U - - Google Patents
Info
- Publication number
- JPS63152343U JPS63152343U JP4342987U JP4342987U JPS63152343U JP S63152343 U JPS63152343 U JP S63152343U JP 4342987 U JP4342987 U JP 4342987U JP 4342987 U JP4342987 U JP 4342987U JP S63152343 U JPS63152343 U JP S63152343U
- Authority
- JP
- Japan
- Prior art keywords
- line terminal
- data signal
- extension line
- door phone
- switch means
- 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 |
|---|---|---|---|
| JP4342987U JPS63152343U (fi) | 1987-03-26 | 1987-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4342987U JPS63152343U (fi) | 1987-03-26 | 1987-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63152343U true JPS63152343U (fi) | 1988-10-06 |
Family
ID=30860278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4342987U Pending JPS63152343U (fi) | 1987-03-26 | 1987-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63152343U (fi) |
-
1987
- 1987-03-26 JP JP4342987U patent/JPS63152343U/ja active Pending