JPS646933U - - Google Patents
Info
- Publication number
- JPS646933U JPS646933U JP10287887U JP10287887U JPS646933U JP S646933 U JPS646933 U JP S646933U JP 10287887 U JP10287887 U JP 10287887U JP 10287887 U JP10287887 U JP 10287887U JP S646933 U JPS646933 U JP S646933U
- Authority
- JP
- Japan
- Prior art keywords
- ear mask
- way communication
- ear
- mask
- suspends
- 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
- 210000005069 ears Anatomy 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10287887U JPS646933U (un) | 1987-07-03 | 1987-07-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10287887U JPS646933U (un) | 1987-07-03 | 1987-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS646933U true JPS646933U (un) | 1989-01-17 |
Family
ID=31333192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10287887U Pending JPS646933U (un) | 1987-07-03 | 1987-07-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS646933U (un) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5892919U (ja) * | 1981-12-16 | 1983-06-23 | 株式会社モリタ製作所 | インピ−ダンス・オ−デイオメ−タの耳栓保持構造 |
| JPS6137156A (ja) * | 1984-07-28 | 1986-02-22 | シチズン時計株式会社 | 遮音装置 |
| JPS6155030B2 (un) * | 1979-12-07 | 1986-11-26 | Hitachi Ltd |
-
1987
- 1987-07-03 JP JP10287887U patent/JPS646933U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6155030B2 (un) * | 1979-12-07 | 1986-11-26 | Hitachi Ltd | |
| JPS5892919U (ja) * | 1981-12-16 | 1983-06-23 | 株式会社モリタ製作所 | インピ−ダンス・オ−デイオメ−タの耳栓保持構造 |
| JPS6137156A (ja) * | 1984-07-28 | 1986-02-22 | シチズン時計株式会社 | 遮音装置 |