KR870001383U - 양방성 음향 트랜스듀서 - Google Patents
양방성 음향 트랜스듀서Info
- Publication number
- KR870001383U KR870001383U KR2019850007283U KR850007283U KR870001383U KR 870001383 U KR870001383 U KR 870001383U KR 2019850007283 U KR2019850007283 U KR 2019850007283U KR 850007283 U KR850007283 U KR 850007283U KR 870001383 U KR870001383 U KR 870001383U
- Authority
- KR
- South Korea
- Prior art keywords
- amphibian
- acoustic transducer
- acoustic
- transducer
- amphibian acoustic
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019850007283U KR880001882Y1 (ko) | 1985-06-18 | 1985-06-18 | 양방성 음향 트랜스듀서 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019850007283U KR880001882Y1 (ko) | 1985-06-18 | 1985-06-18 | 양방성 음향 트랜스듀서 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR870001383U true KR870001383U (ko) | 1987-02-20 |
| KR880001882Y1 KR880001882Y1 (ko) | 1988-05-21 |
Family
ID=19243010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019850007283U KR880001882Y1 (ko) | 1985-06-18 | 1985-06-18 | 양방성 음향 트랜스듀서 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR880001882Y1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220017723A (ko) * | 2020-08-05 | 2022-02-14 | 대진전기 (주) | 간편한 폐쇄형 무정전 자동절환 스위치의 수동식 스위치 구조장치 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020096059A (ko) * | 2001-06-14 | 2002-12-31 | 신기옥 | 도자기 전기포트 |
-
1985
- 1985-06-18 KR KR2019850007283U patent/KR880001882Y1/ko not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220017723A (ko) * | 2020-08-05 | 2022-02-14 | 대진전기 (주) | 간편한 폐쇄형 무정전 자동절환 스위치의 수동식 스위치 구조장치 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR880001882Y1 (ko) | 1988-05-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19850618 |
|
| UG1501 | Laying open of application | ||
| A201 | Request for examination | ||
| UA0201 | Request for examination |
Patent event date: 19870921 Patent event code: UA02012R01D Comment text: Request for Examination of Application Patent event date: 19850618 Patent event code: UA02011R01I Comment text: Application for Utility Model Registration |
|
| UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19880420 |
|
| E701 | Decision to grant or registration of patent right | ||
| UE0701 | Decision of registration |
Patent event date: 19880730 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
|
| REGI | Registration of establishment | ||
| UR0701 | Registration of establishment |
Patent event date: 19881015 Patent event code: UR07011E01D Comment text: Registration of Establishment |
|
| UR1002 | Payment of registration fee |
Start annual number: 1 End annual number: 3 Payment date: 19881015 |
|
| FPAY | Annual fee payment |
Payment date: 19910518 Year of fee payment: 4 |
|
| UR1001 | Payment of annual fee |
Payment date: 19910518 Start annual number: 4 End annual number: 4 |
|
| LAPS | Lapse due to unpaid annual fee | ||
| UC1903 | Unpaid annual fee |
Termination date: 19941008 Termination category: Default of registration fee |