JPS63174755U - - Google Patents
Info
- Publication number
- JPS63174755U JPS63174755U JP15415986U JP15415986U JPS63174755U JP S63174755 U JPS63174755 U JP S63174755U JP 15415986 U JP15415986 U JP 15415986U JP 15415986 U JP15415986 U JP 15415986U JP S63174755 U JPS63174755 U JP S63174755U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- notification sound
- activated
- destination device
- timer circuit
- 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
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15415986U JPS63174755U (en17) | 1986-10-07 | 1986-10-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15415986U JPS63174755U (en17) | 1986-10-07 | 1986-10-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63174755U true JPS63174755U (en17) | 1988-11-14 |
Family
ID=31073700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15415986U Pending JPS63174755U (en17) | 1986-10-07 | 1986-10-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63174755U (en17) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53149702A (en) * | 1978-03-02 | 1978-12-27 | Aiphone Co Ltd | Circuit for calling interphone |
| JPS57141167A (en) * | 1981-02-26 | 1982-09-01 | Fujitsu Ltd | Calling bell ringing system of interphone |
-
1986
- 1986-10-07 JP JP15415986U patent/JPS63174755U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53149702A (en) * | 1978-03-02 | 1978-12-27 | Aiphone Co Ltd | Circuit for calling interphone |
| JPS57141167A (en) * | 1981-02-26 | 1982-09-01 | Fujitsu Ltd | Calling bell ringing system of interphone |