JPS63111128U - - Google Patents
Info
- Publication number
- JPS63111128U JPS63111128U JP297787U JP297787U JPS63111128U JP S63111128 U JPS63111128 U JP S63111128U JP 297787 U JP297787 U JP 297787U JP 297787 U JP297787 U JP 297787U JP S63111128 U JPS63111128 U JP S63111128U
- Authority
- JP
- Japan
- Prior art keywords
- earplug body
- hole
- face
- center
- rear end
- 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
- 239000006260 foam Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Headphones And Earphones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987002977U JPH0310749Y2 (ar) | 1987-01-14 | 1987-01-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987002977U JPH0310749Y2 (ar) | 1987-01-14 | 1987-01-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63111128U true JPS63111128U (ar) | 1988-07-16 |
| JPH0310749Y2 JPH0310749Y2 (ar) | 1991-03-18 |
Family
ID=30782321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987002977U Expired JPH0310749Y2 (ar) | 1987-01-14 | 1987-01-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0310749Y2 (ar) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52110428U (ar) * | 1976-02-19 | 1977-08-22 | ||
| JPS5518825U (ar) * | 1978-07-20 | 1980-02-06 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3970147A (en) * | 1975-01-13 | 1976-07-20 | Halliburton Company | Method and apparatus for annulus pressure responsive circulation and tester valve manipulation |
-
1987
- 1987-01-14 JP JP1987002977U patent/JPH0310749Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52110428U (ar) * | 1976-02-19 | 1977-08-22 | ||
| JPS5518825U (ar) * | 1978-07-20 | 1980-02-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0310749Y2 (ar) | 1991-03-18 |