JPH01141997U - - Google Patents
Info
- Publication number
- JPH01141997U JPH01141997U JP3919788U JP3919788U JPH01141997U JP H01141997 U JPH01141997 U JP H01141997U JP 3919788 U JP3919788 U JP 3919788U JP 3919788 U JP3919788 U JP 3919788U JP H01141997 U JPH01141997 U JP H01141997U
- Authority
- JP
- Japan
- Prior art keywords
- pump
- gas
- permeable membrane
- utility
- scope
- 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
- 239000012528 membrane Substances 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Pipe Accessories (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3919788U JPH01141997U (fr) | 1988-03-25 | 1988-03-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3919788U JPH01141997U (fr) | 1988-03-25 | 1988-03-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01141997U true JPH01141997U (fr) | 1989-09-28 |
Family
ID=31265710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3919788U Pending JPH01141997U (fr) | 1988-03-25 | 1988-03-25 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01141997U (fr) |
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1988
- 1988-03-25 JP JP3919788U patent/JPH01141997U/ja active Pending