JPH0129907Y2 - - Google Patents
Info
- Publication number
- JPH0129907Y2 JPH0129907Y2 JP4622581U JP4622581U JPH0129907Y2 JP H0129907 Y2 JPH0129907 Y2 JP H0129907Y2 JP 4622581 U JP4622581 U JP 4622581U JP 4622581 U JP4622581 U JP 4622581U JP H0129907 Y2 JPH0129907 Y2 JP H0129907Y2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- speaker
- monitor
- phone
- changeover switch
- 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.)
- Expired
Links
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000005236 sound signal Effects 0.000 claims 4
- 239000011358 absorbing material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000010370 hearing loss Effects 0.000 description 1
- 231100000888 hearing loss Toxicity 0.000 description 1
- 208000016354 hearing loss disease Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4622581U JPH0129907Y2 (en]) | 1981-03-31 | 1981-03-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4622581U JPH0129907Y2 (en]) | 1981-03-31 | 1981-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57158299U JPS57158299U (en]) | 1982-10-05 |
| JPH0129907Y2 true JPH0129907Y2 (en]) | 1989-09-12 |
Family
ID=29843080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4622581U Expired JPH0129907Y2 (en]) | 1981-03-31 | 1981-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0129907Y2 (en]) |
-
1981
- 1981-03-31 JP JP4622581U patent/JPH0129907Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57158299U (en]) | 1982-10-05 |
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