JPH0167594U - - Google Patents
Info
- Publication number
- JPH0167594U JPH0167594U JP1987162269U JP16226987U JPH0167594U JP H0167594 U JPH0167594 U JP H0167594U JP 1987162269 U JP1987162269 U JP 1987162269U JP 16226987 U JP16226987 U JP 16226987U JP H0167594 U JPH0167594 U JP H0167594U
- Authority
- JP
- Japan
- Prior art keywords
- reflector
- light
- entrance
- exit
- doorway
- 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 1
Landscapes
- Burglar Alarm Systems (AREA)
- Catching Or Destruction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987162269U JPH0167594U (en:Method) | 1987-10-23 | 1987-10-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987162269U JPH0167594U (en:Method) | 1987-10-23 | 1987-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0167594U true JPH0167594U (en:Method) | 1989-05-01 |
Family
ID=31445941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987162269U Pending JPH0167594U (en:Method) | 1987-10-23 | 1987-10-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0167594U (en:Method) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5320292B2 (en:Method) * | 1973-08-23 | 1978-06-26 |
-
1987
- 1987-10-23 JP JP1987162269U patent/JPH0167594U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5320292B2 (en:Method) * | 1973-08-23 | 1978-06-26 |