JPS4911603U - - Google Patents
Info
- Publication number
- JPS4911603U JPS4911603U JP5306872U JP5306872U JPS4911603U JP S4911603 U JPS4911603 U JP S4911603U JP 5306872 U JP5306872 U JP 5306872U JP 5306872 U JP5306872 U JP 5306872U JP S4911603 U JPS4911603 U JP S4911603U
- Authority
- JP
- Japan
- 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.)
- Granted
Links
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5306872U JPS5312091Y2 (enExample) | 1972-05-06 | 1972-05-06 | |
| US00319709A US3836718A (en) | 1972-05-06 | 1972-12-29 | Intercommunication system with a time limited advance notice signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5306872U JPS5312091Y2 (enExample) | 1972-05-06 | 1972-05-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4911603U true JPS4911603U (enExample) | 1974-01-31 |
| JPS5312091Y2 JPS5312091Y2 (enExample) | 1978-04-01 |
Family
ID=27935216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5306872U Expired JPS5312091Y2 (enExample) | 1972-05-06 | 1972-05-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5312091Y2 (enExample) |
-
1972
- 1972-05-06 JP JP5306872U patent/JPS5312091Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5312091Y2 (enExample) | 1978-04-01 |