JPS63187495U - - Google Patents
Info
- Publication number
- JPS63187495U JPS63187495U JP7814787U JP7814787U JPS63187495U JP S63187495 U JPS63187495 U JP S63187495U JP 7814787 U JP7814787 U JP 7814787U JP 7814787 U JP7814787 U JP 7814787U JP S63187495 U JPS63187495 U JP S63187495U
- Authority
- JP
- Japan
- Prior art keywords
- visible light
- slit
- speaker
- light source
- microphone
- 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
- 238000010586 diagram Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7814787U JPS63187495U (da) | 1987-05-26 | 1987-05-26 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7814787U JPS63187495U (da) | 1987-05-26 | 1987-05-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63187495U true JPS63187495U (da) | 1988-11-30 |
Family
ID=30926821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7814787U Pending JPS63187495U (da) | 1987-05-26 | 1987-05-26 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63187495U (da) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56140795A (en) * | 1980-03-12 | 1981-11-04 | Philips Nv | Electroacoustic converter position control device |
-
1987
- 1987-05-26 JP JP7814787U patent/JPS63187495U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56140795A (en) * | 1980-03-12 | 1981-11-04 | Philips Nv | Electroacoustic converter position control device |
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