FR34464E - - Google Patents
Info
- Publication number
- FR34464E FR34464E FR34464DA FR34464E FR 34464 E FR34464 E FR 34464E FR 34464D A FR34464D A FR 34464DA FR 34464 E FR34464 E FR 34464E
- Authority
- FR
- France
- 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
- H04R11/00—Transducers of moving-armature or moving-core type
-
- 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
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Multimedia (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Headphones And Earphones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR33602T | 1927-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR34464E true FR34464E (US06811534-20041102-M00003.png) | 1929-06-19 |
Family
ID=8671232
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR34464D Expired FR34464E (US06811534-20041102-M00003.png) | 1927-05-24 | ||
| FR594032D Expired FR594032A (fr) | 1927-05-24 | 1924-05-08 | Perfectionnements aux récepteurs, émetteurs téléphoniques, relais électriques et analogues |
| FR33602D Expired FR33602E (fr) | 1927-05-24 | 1927-05-24 | Perfectionnements aux récepteurs, émetteurs téléphoniques, relais électriques et analogues |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR594032D Expired FR594032A (fr) | 1927-05-24 | 1924-05-08 | Perfectionnements aux récepteurs, émetteurs téléphoniques, relais électriques et analogues |
| FR33602D Expired FR33602E (fr) | 1927-05-24 | 1927-05-24 | Perfectionnements aux récepteurs, émetteurs téléphoniques, relais électriques et analogues |
Country Status (2)
| Country | Link |
|---|---|
| FR (3) | FR594032A (US06811534-20041102-M00003.png) |
| GB (1) | GB233684A (US06811534-20041102-M00003.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10058274A1 (de) * | 2000-11-23 | 2002-05-29 | Alfa Laval Flow Gmbh | Membran mit strukturierter Oberfläche |
-
0
- FR FR34464D patent/FR34464E/fr not_active Expired
-
1924
- 1924-05-08 FR FR594032D patent/FR594032A/fr not_active Expired
-
1925
- 1925-04-24 GB GB10750/25A patent/GB233684A/en not_active Expired
-
1927
- 1927-05-24 FR FR33602D patent/FR33602E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB233684A (en) | 1926-04-01 |
| FR594032A (fr) | 1925-09-04 |
| FR33602E (fr) | 1928-11-29 |
