JPS521808B2 - - Google Patents
Info
- Publication number
- JPS521808B2 JPS521808B2 JP1396972A JP1396972A JPS521808B2 JP S521808 B2 JPS521808 B2 JP S521808B2 JP 1396972 A JP1396972 A JP 1396972A JP 1396972 A JP1396972 A JP 1396972A JP S521808 B2 JPS521808 B2 JP S521808B2
- 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
Landscapes
- Exchange Systems With Centralized Control (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1396972A JPS521808B2 (en:Method) | 1972-02-10 | 1972-02-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1396972A JPS521808B2 (en:Method) | 1972-02-10 | 1972-02-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4884513A JPS4884513A (en:Method) | 1973-11-09 |
| JPS521808B2 true JPS521808B2 (en:Method) | 1977-01-18 |
Family
ID=11848031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1396972A Expired JPS521808B2 (en:Method) | 1972-02-10 | 1972-02-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS521808B2 (en:Method) |
-
1972
- 1972-02-10 JP JP1396972A patent/JPS521808B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4884513A (en:Method) | 1973-11-09 |