JPH0289389U - - Google Patents
Info
- Publication number
- JPH0289389U JPH0289389U JP16968888U JP16968888U JPH0289389U JP H0289389 U JPH0289389 U JP H0289389U JP 16968888 U JP16968888 U JP 16968888U JP 16968888 U JP16968888 U JP 16968888U JP H0289389 U JPH0289389 U JP H0289389U
- Authority
- JP
- Japan
- Prior art keywords
- ship
- passing
- receiving part
- signal
- light receiving
- 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 2
- 238000012790 confirmation Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Measurement Of Unknown Time Intervals (AREA)
- Geophysics And Detection Of Objects (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16968888U JPH0289389U (https=) | 1988-12-28 | 1988-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16968888U JPH0289389U (https=) | 1988-12-28 | 1988-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0289389U true JPH0289389U (https=) | 1990-07-16 |
Family
ID=31699700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16968888U Pending JPH0289389U (https=) | 1988-12-28 | 1988-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0289389U (https=) |
-
1988
- 1988-12-28 JP JP16968888U patent/JPH0289389U/ja active Pending
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