JPH0398598U - - Google Patents
Info
- Publication number
- JPH0398598U JPH0398598U JP650390U JP650390U JPH0398598U JP H0398598 U JPH0398598 U JP H0398598U JP 650390 U JP650390 U JP 650390U JP 650390 U JP650390 U JP 650390U JP H0398598 U JPH0398598 U JP H0398598U
- Authority
- JP
- Japan
- Prior art keywords
- recording
- circuit
- microphone
- speaker
- low frequency
- 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
- 230000003321 amplification Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP650390U JPH0398598U (fr) | 1990-01-28 | 1990-01-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP650390U JPH0398598U (fr) | 1990-01-28 | 1990-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0398598U true JPH0398598U (fr) | 1991-10-14 |
Family
ID=31510179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP650390U Pending JPH0398598U (fr) | 1990-01-28 | 1990-01-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0398598U (fr) |
-
1990
- 1990-01-28 JP JP650390U patent/JPH0398598U/ja active Pending