JPH0333493U - - Google Patents
Info
- Publication number
- JPH0333493U JPH0333493U JP9454289U JP9454289U JPH0333493U JP H0333493 U JPH0333493 U JP H0333493U JP 9454289 U JP9454289 U JP 9454289U JP 9454289 U JP9454289 U JP 9454289U JP H0333493 U JPH0333493 U JP H0333493U
- Authority
- JP
- Japan
- Prior art keywords
- key
- specific wavelength
- light beam
- keyboard
- broadband light
- 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
- 230000003287 optical effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9454289U JPH0333493U (cs) | 1989-08-11 | 1989-08-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9454289U JPH0333493U (cs) | 1989-08-11 | 1989-08-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0333493U true JPH0333493U (cs) | 1991-04-02 |
Family
ID=31643866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9454289U Pending JPH0333493U (cs) | 1989-08-11 | 1989-08-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0333493U (cs) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007078956A (ja) * | 2005-09-13 | 2007-03-29 | Casio Comput Co Ltd | 演奏教習装置および演奏教習処理のプログラム |
-
1989
- 1989-08-11 JP JP9454289U patent/JPH0333493U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007078956A (ja) * | 2005-09-13 | 2007-03-29 | Casio Comput Co Ltd | 演奏教習装置および演奏教習処理のプログラム |
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