JPS63109974U - - Google Patents
Info
- Publication number
- JPS63109974U JPS63109974U JP93787U JP93787U JPS63109974U JP S63109974 U JPS63109974 U JP S63109974U JP 93787 U JP93787 U JP 93787U JP 93787 U JP93787 U JP 93787U JP S63109974 U JPS63109974 U JP S63109974U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- speaker
- sound
- low frequency
- generates
- 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
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Electrically Operated Instructional Devices (AREA)
- Toys (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP93787U JPS63109974U (de) | 1987-01-09 | 1987-01-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP93787U JPS63109974U (de) | 1987-01-09 | 1987-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63109974U true JPS63109974U (de) | 1988-07-15 |
Family
ID=30778373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP93787U Pending JPS63109974U (de) | 1987-01-09 | 1987-01-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63109974U (de) |
-
1987
- 1987-01-09 JP JP93787U patent/JPS63109974U/ja active Pending