JPH0299493U - - Google Patents
Info
- Publication number
- JPH0299493U JPH0299493U JP507989U JP507989U JPH0299493U JP H0299493 U JPH0299493 U JP H0299493U JP 507989 U JP507989 U JP 507989U JP 507989 U JP507989 U JP 507989U JP H0299493 U JPH0299493 U JP H0299493U
- Authority
- JP
- Japan
- Prior art keywords
- gas
- sonic
- sound wave
- specific
- modulation
- 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 description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP507989U JPH0299493U (de) | 1989-01-20 | 1989-01-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP507989U JPH0299493U (de) | 1989-01-20 | 1989-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0299493U true JPH0299493U (de) | 1990-08-08 |
Family
ID=31208144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP507989U Pending JPH0299493U (de) | 1989-01-20 | 1989-01-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0299493U (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5723473B2 (de) * | 1972-09-22 | 1982-05-19 |
-
1989
- 1989-01-20 JP JP507989U patent/JPH0299493U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5723473B2 (de) * | 1972-09-22 | 1982-05-19 |
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