JPS4965715A - - Google Patents
Info
- Publication number
- JPS4965715A JPS4965715A JP47106868A JP10686872A JPS4965715A JP S4965715 A JPS4965715 A JP S4965715A JP 47106868 A JP47106868 A JP 47106868A JP 10686872 A JP10686872 A JP 10686872A JP S4965715 A JPS4965715 A JP S4965715A
- 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.)
- Pending
Links
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47106868A JPS4965715A (xx) | 1972-10-25 | 1972-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47106868A JPS4965715A (xx) | 1972-10-25 | 1972-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4965715A true JPS4965715A (xx) | 1974-06-26 |
Family
ID=14444508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47106868A Pending JPS4965715A (xx) | 1972-10-25 | 1972-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS4965715A (xx) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56132851A (en) * | 1980-03-22 | 1981-10-17 | Japanese National Railways<Jnr> | Four-wire monitoring system |
-
1972
- 1972-10-25 JP JP47106868A patent/JPS4965715A/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56132851A (en) * | 1980-03-22 | 1981-10-17 | Japanese National Railways<Jnr> | Four-wire monitoring system |
| JPS6355267B2 (xx) * | 1980-03-22 | 1988-11-01 | Tetsudo Sogo Gijutsu Kenkyusho |