JPS63174756U - - Google Patents
Info
- Publication number
- JPS63174756U JPS63174756U JP1259487U JP1259487U JPS63174756U JP S63174756 U JPS63174756 U JP S63174756U JP 1259487 U JP1259487 U JP 1259487U JP 1259487 U JP1259487 U JP 1259487U JP S63174756 U JPS63174756 U JP S63174756U
- Authority
- JP
- Japan
- Prior art keywords
- intercom
- telephone
- line
- handset
- call
- 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
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1259487U JPS63174756U (2) | 1987-01-29 | 1987-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1259487U JPS63174756U (2) | 1987-01-29 | 1987-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63174756U true JPS63174756U (2) | 1988-11-14 |
Family
ID=30800870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1259487U Pending JPS63174756U (2) | 1987-01-29 | 1987-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63174756U (2) |
-
1987
- 1987-01-29 JP JP1259487U patent/JPS63174756U/ja active Pending
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