JPS63125819U - - Google Patents
Info
- Publication number
- JPS63125819U JPS63125819U JP1912087U JP1912087U JPS63125819U JP S63125819 U JPS63125819 U JP S63125819U JP 1912087 U JP1912087 U JP 1912087U JP 1912087 U JP1912087 U JP 1912087U JP S63125819 U JPS63125819 U JP S63125819U
- Authority
- JP
- Japan
- Prior art keywords
- sound
- frequency range
- sound collector
- specific frequency
- spectacle frame
- 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.)
- Granted
Links
- 230000010355 oscillation Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 1
Landscapes
- Eyeglasses (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987019120U JPH0310492Y2 (https=) | 1987-02-12 | 1987-02-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987019120U JPH0310492Y2 (https=) | 1987-02-12 | 1987-02-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63125819U true JPS63125819U (https=) | 1988-08-17 |
| JPH0310492Y2 JPH0310492Y2 (https=) | 1991-03-15 |
Family
ID=30813433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987019120U Expired JPH0310492Y2 (https=) | 1987-02-12 | 1987-02-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0310492Y2 (https=) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5734720A (en) * | 1980-08-08 | 1982-02-25 | Tokyo Shibaura Electric Co | Protection relay unit |
-
1987
- 1987-02-12 JP JP1987019120U patent/JPH0310492Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5734720A (en) * | 1980-08-08 | 1982-02-25 | Tokyo Shibaura Electric Co | Protection relay unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0310492Y2 (https=) | 1991-03-15 |
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