JPH0312454U - - Google Patents
Info
- Publication number
- JPH0312454U JPH0312454U JP7284689U JP7284689U JPH0312454U JP H0312454 U JPH0312454 U JP H0312454U JP 7284689 U JP7284689 U JP 7284689U JP 7284689 U JP7284689 U JP 7284689U JP H0312454 U JPH0312454 U JP H0312454U
- Authority
- JP
- Japan
- Prior art keywords
- light
- receiving
- spherical object
- light receiving
- object passing
- 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
- 238000010586 diagram Methods 0.000 description 2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7284689U JPH0312454U (fr) | 1989-06-20 | 1989-06-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7284689U JPH0312454U (fr) | 1989-06-20 | 1989-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0312454U true JPH0312454U (fr) | 1991-02-07 |
Family
ID=31611146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7284689U Pending JPH0312454U (fr) | 1989-06-20 | 1989-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0312454U (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003082750A (ja) * | 2001-09-11 | 2003-03-19 | Taisei Corp | 排水用側溝 |
-
1989
- 1989-06-20 JP JP7284689U patent/JPH0312454U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003082750A (ja) * | 2001-09-11 | 2003-03-19 | Taisei Corp | 排水用側溝 |
| JP4572047B2 (ja) * | 2001-09-11 | 2010-10-27 | 大成建設株式会社 | 排水用側溝 |