JPS4990977A - - Google Patents
Info
- Publication number
- JPS4990977A JPS4990977A JP213873A JP213873A JPS4990977A JP S4990977 A JPS4990977 A JP S4990977A JP 213873 A JP213873 A JP 213873A JP 213873 A JP213873 A JP 213873A JP S4990977 A JPS4990977 A JP S4990977A
- 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
- Electric Propulsion And Braking For Vehicles (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP213873A JPS5249987B2 (en:Method) | 1972-12-28 | 1972-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP213873A JPS5249987B2 (en:Method) | 1972-12-28 | 1972-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4990977A true JPS4990977A (en:Method) | 1974-08-30 |
| JPS5249987B2 JPS5249987B2 (en:Method) | 1977-12-21 |
Family
ID=11520964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP213873A Expired JPS5249987B2 (en:Method) | 1972-12-28 | 1972-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5249987B2 (en:Method) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0263276U (en:Method) * | 1988-11-01 | 1990-05-11 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS574308U (en:Method) * | 1980-06-06 | 1982-01-09 |
-
1972
- 1972-12-28 JP JP213873A patent/JPS5249987B2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0263276U (en:Method) * | 1988-11-01 | 1990-05-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5249987B2 (en:Method) | 1977-12-21 |