FR576123A - Ear-drum - Google Patents
Ear-drumInfo
- Publication number
- FR576123A FR576123A FR576123DA FR576123A FR 576123 A FR576123 A FR 576123A FR 576123D A FR576123D A FR 576123DA FR 576123 A FR576123 A FR 576123A
- Authority
- FR
- France
- Prior art keywords
- ear
- drum
- 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR576123T | 1924-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR576123A true FR576123A (en) | 1924-08-11 |
Family
ID=8953857
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR576123D Expired FR576123A (en) | 1924-01-21 | 1924-01-21 | Ear-drum |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR576123A (en) |
-
1924
- 1924-01-21 FR FR576123D patent/FR576123A/en not_active Expired
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