JPH01137484U - - Google Patents
Info
- Publication number
- JPH01137484U JPH01137484U JP3400488U JP3400488U JPH01137484U JP H01137484 U JPH01137484 U JP H01137484U JP 3400488 U JP3400488 U JP 3400488U JP 3400488 U JP3400488 U JP 3400488U JP H01137484 U JPH01137484 U JP H01137484U
- Authority
- JP
- Japan
- Prior art keywords
- door
- detector
- detectors
- ultrasonic sensor
- operate
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3400488U JPH01137484U (ru) | 1988-03-15 | 1988-03-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3400488U JPH01137484U (ru) | 1988-03-15 | 1988-03-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01137484U true JPH01137484U (ru) | 1989-09-20 |
Family
ID=31260724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3400488U Pending JPH01137484U (ru) | 1988-03-15 | 1988-03-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01137484U (ru) |
-
1988
- 1988-03-15 JP JP3400488U patent/JPH01137484U/ja active Pending