JPS5438001B2 - - Google Patents
Info
- Publication number
- JPS5438001B2 JPS5438001B2 JP9208375A JP9208375A JPS5438001B2 JP S5438001 B2 JPS5438001 B2 JP S5438001B2 JP 9208375 A JP9208375 A JP 9208375A JP 9208375 A JP9208375 A JP 9208375A JP S5438001 B2 JPS5438001 B2 JP S5438001B2
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
- H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9208375A JPS5216906A (en) | 1975-07-30 | 1975-07-30 | Local line state lamp display circuit in key-telephone device |
| US05/707,324 US4079212A (en) | 1975-07-23 | 1976-07-21 | Extension telephone system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9208375A JPS5216906A (en) | 1975-07-30 | 1975-07-30 | Local line state lamp display circuit in key-telephone device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5216906A JPS5216906A (en) | 1977-02-08 |
| JPS5438001B2 true JPS5438001B2 (en) | 1979-11-19 |
Family
ID=14044541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9208375A Granted JPS5216906A (en) | 1975-07-23 | 1975-07-30 | Local line state lamp display circuit in key-telephone device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5216906A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53111211A (en) * | 1977-03-10 | 1978-09-28 | Kanda Tsushin Kogyo Kk | Button telephone set |
-
1975
- 1975-07-30 JP JP9208375A patent/JPS5216906A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5216906A (en) | 1977-02-08 |