JPS4899803A - - Google Patents
Info
- Publication number
- JPS4899803A JPS4899803A JP3231472A JP3231472A JPS4899803A JP S4899803 A JPS4899803 A JP S4899803A JP 3231472 A JP3231472 A JP 3231472A JP 3231472 A JP3231472 A JP 3231472A JP S4899803 A JPS4899803 A JP S4899803A
- 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
- Train Traffic Observation, Control, And Security (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3231472A JPS4899803A (en]) | 1972-03-31 | 1972-03-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3231472A JPS4899803A (en]) | 1972-03-31 | 1972-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4899803A true JPS4899803A (en]) | 1973-12-17 |
Family
ID=12355462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3231472A Pending JPS4899803A (en]) | 1972-03-31 | 1972-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS4899803A (en]) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02121476U (en]) * | 1989-03-18 | 1990-10-02 |
-
1972
- 1972-03-31 JP JP3231472A patent/JPS4899803A/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02121476U (en]) * | 1989-03-18 | 1990-10-02 |