JPH02109939U - - Google Patents
Info
- Publication number
- JPH02109939U JPH02109939U JP1707889U JP1707889U JPH02109939U JP H02109939 U JPH02109939 U JP H02109939U JP 1707889 U JP1707889 U JP 1707889U JP 1707889 U JP1707889 U JP 1707889U JP H02109939 U JPH02109939 U JP H02109939U
- Authority
- JP
- Japan
- Prior art keywords
- room
- door
- dust
- closes
- opens
- 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
- 239000000428 dust Substances 0.000 claims description 4
- 230000003749 cleanliness Effects 0.000 claims 1
- 238000005192 partition Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Ventilation (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1707889U JPH02109939U (enExample) | 1989-02-16 | 1989-02-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1707889U JPH02109939U (enExample) | 1989-02-16 | 1989-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02109939U true JPH02109939U (enExample) | 1990-09-03 |
Family
ID=31230559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1707889U Pending JPH02109939U (enExample) | 1989-02-16 | 1989-02-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02109939U (enExample) |
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1989
- 1989-02-16 JP JP1707889U patent/JPH02109939U/ja active Pending