JPS61109299U - - Google Patents
Info
- Publication number
- JPS61109299U JPS61109299U JP19414784U JP19414784U JPS61109299U JP S61109299 U JPS61109299 U JP S61109299U JP 19414784 U JP19414784 U JP 19414784U JP 19414784 U JP19414784 U JP 19414784U JP S61109299 U JPS61109299 U JP S61109299U
- Authority
- JP
- Japan
- Prior art keywords
- section
- horn
- utility
- model registration
- electric megaphone
- 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
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000000057 synthetic resin Substances 0.000 claims 1
Landscapes
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984194147U JPH0349517Y2 (en]) | 1984-12-20 | 1984-12-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984194147U JPH0349517Y2 (en]) | 1984-12-20 | 1984-12-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61109299U true JPS61109299U (en]) | 1986-07-10 |
| JPH0349517Y2 JPH0349517Y2 (en]) | 1991-10-22 |
Family
ID=30751585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984194147U Expired JPH0349517Y2 (en]) | 1984-12-20 | 1984-12-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0349517Y2 (en]) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102774366B1 (ko) * | 2023-10-27 | 2025-02-27 | 전라남도 | 가변 가능한 지향성 확성기 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5165609U (en]) * | 1974-11-19 | 1976-05-24 |
-
1984
- 1984-12-20 JP JP1984194147U patent/JPH0349517Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5165609U (en]) * | 1974-11-19 | 1976-05-24 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102774366B1 (ko) * | 2023-10-27 | 2025-02-27 | 전라남도 | 가변 가능한 지향성 확성기 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0349517Y2 (en]) | 1991-10-22 |