JPS491222A - - Google Patents
Info
- Publication number
- JPS491222A JPS491222A JP3847172A JP3847172A JPS491222A JP S491222 A JPS491222 A JP S491222A JP 3847172 A JP3847172 A JP 3847172A JP 3847172 A JP3847172 A JP 3847172A JP S491222 A JPS491222 A JP S491222A
- Authority
- JP
- Japan
- 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
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3847172A JPS491222A (xx) | 1972-04-17 | 1972-04-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3847172A JPS491222A (xx) | 1972-04-17 | 1972-04-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS491222A true JPS491222A (xx) | 1974-01-08 |
Family
ID=12526144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3847172A Pending JPS491222A (xx) | 1972-04-17 | 1972-04-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS491222A (xx) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5139073A (ja) * | 1974-09-27 | 1976-04-01 | Nippon Ferrite Kk | Choonpasojushingu |
JPS51138078U (xx) * | 1975-04-29 | 1976-11-08 | ||
JPS5330296A (en) * | 1976-09-01 | 1978-03-22 | Seiko Instr & Electronics Ltd | Electro-acoustic transducer |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3109111A (en) * | 1961-10-30 | 1963-10-29 | Euphonics Corp | Ultra-sonic microphone |
-
1972
- 1972-04-17 JP JP3847172A patent/JPS491222A/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3109111A (en) * | 1961-10-30 | 1963-10-29 | Euphonics Corp | Ultra-sonic microphone |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5139073A (ja) * | 1974-09-27 | 1976-04-01 | Nippon Ferrite Kk | Choonpasojushingu |
JPS51138078U (xx) * | 1975-04-29 | 1976-11-08 | ||
JPS5330296A (en) * | 1976-09-01 | 1978-03-22 | Seiko Instr & Electronics Ltd | Electro-acoustic transducer |
JPS5527359B2 (xx) * | 1976-09-01 | 1980-07-19 |