ES146840A1 - Micrófono piezo-eléctrico. - Google Patents
Micrófono piezo-eléctrico.Info
- Publication number
- ES146840A1 ES146840A1 ES146840A ES146840A ES146840A1 ES 146840 A1 ES146840 A1 ES 146840A1 ES 146840 A ES146840 A ES 146840A ES 146840 A ES146840 A ES 146840A ES 146840 A1 ES146840 A1 ES 146840A1
- Authority
- ES
- Spain
- Prior art keywords
- piezo
- electric microphone
- microphone
- electric
- 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.)
- Expired
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES146840A ES146840A1 (es) | 1939-04-08 | 1939-04-08 | Micrófono piezo-eléctrico. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES146840A ES146840A1 (es) | 1939-04-08 | 1939-04-08 | Micrófono piezo-eléctrico. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES146840A1 true ES146840A1 (es) | 1941-03-01 |
Family
ID=65596594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES146840A Expired ES146840A1 (es) | 1939-04-08 | 1939-04-08 | Micrófono piezo-eléctrico. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES146840A1 (es) |
-
1939
- 1939-04-08 ES ES146840A patent/ES146840A1/es not_active Expired
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