JPS6431937U - - Google Patents
Info
- Publication number
- JPS6431937U JPS6431937U JP12720587U JP12720587U JPS6431937U JP S6431937 U JPS6431937 U JP S6431937U JP 12720587 U JP12720587 U JP 12720587U JP 12720587 U JP12720587 U JP 12720587U JP S6431937 U JPS6431937 U JP S6431937U
- Authority
- JP
- Japan
- Prior art keywords
- ventilation fan
- filter
- filter frame
- fan body
- storage chamber
- 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
- 238000009423 ventilation Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12720587U JPS6431937U (pt) | 1987-08-21 | 1987-08-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12720587U JPS6431937U (pt) | 1987-08-21 | 1987-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6431937U true JPS6431937U (pt) | 1989-02-28 |
Family
ID=31379424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12720587U Pending JPS6431937U (pt) | 1987-08-21 | 1987-08-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6431937U (pt) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7175823B2 (en) | 2002-02-27 | 2007-02-13 | Stella Chemifa Kabushiki Kaisha | Purification method for producing high purity niobium compound and/or tantalum compound |
| US7214362B2 (en) | 2002-02-27 | 2007-05-08 | Stella Chemifa Kabushiki Kaisha | Purification method for producing high purity niobium compound and/or tantalum compound |
-
1987
- 1987-08-21 JP JP12720587U patent/JPS6431937U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7175823B2 (en) | 2002-02-27 | 2007-02-13 | Stella Chemifa Kabushiki Kaisha | Purification method for producing high purity niobium compound and/or tantalum compound |
| US7214362B2 (en) | 2002-02-27 | 2007-05-08 | Stella Chemifa Kabushiki Kaisha | Purification method for producing high purity niobium compound and/or tantalum compound |