FR1116479A - Microphone - Google Patents
MicrophoneInfo
- Publication number
- FR1116479A FR1116479A FR1116479DA FR1116479A FR 1116479 A FR1116479 A FR 1116479A FR 1116479D A FR1116479D A FR 1116479DA FR 1116479 A FR1116479 A FR 1116479A
- Authority
- FR
- France
- Prior art keywords
- microphone
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R21/00—Variable-resistance transducers
- H04R21/02—Microphones
- H04R21/021—Microphones with granular resistance material
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1116479X | 1953-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1116479A true FR1116479A (en) | 1956-05-08 |
Family
ID=7724132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1116479D Expired FR1116479A (en) | 1953-11-25 | 1954-11-03 | Microphone |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE533537A (en) |
FR (1) | FR1116479A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1040603B (en) * | 1957-06-18 | 1958-10-09 | Krone Kg | Light speech capsule for interrogation sets or the like. |
-
0
- BE BE533537D patent/BE533537A/xx unknown
-
1954
- 1954-11-03 FR FR1116479D patent/FR1116479A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1040603B (en) * | 1957-06-18 | 1958-10-09 | Krone Kg | Light speech capsule for interrogation sets or the like. |
Also Published As
Publication number | Publication date |
---|---|
BE533537A (en) |
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