JPS61140989U - - Google Patents
Info
- Publication number
- JPS61140989U JPS61140989U JP2441185U JP2441185U JPS61140989U JP S61140989 U JPS61140989 U JP S61140989U JP 2441185 U JP2441185 U JP 2441185U JP 2441185 U JP2441185 U JP 2441185U JP S61140989 U JPS61140989 U JP S61140989U
- Authority
- JP
- Japan
- Prior art keywords
- small boat
- colliding
- risk
- detecting
- location
- Prior art date
- 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
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2441185U JPS61140989U (pl) | 1985-02-22 | 1985-02-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2441185U JPS61140989U (pl) | 1985-02-22 | 1985-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61140989U true JPS61140989U (pl) | 1986-09-01 |
Family
ID=30518536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2441185U Pending JPS61140989U (pl) | 1985-02-22 | 1985-02-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61140989U (pl) |
-
1985
- 1985-02-22 JP JP2441185U patent/JPS61140989U/ja active Pending