GB233684A - Improvements in telephonic receivers, transmitters or the like - Google Patents
Improvements in telephonic receivers, transmitters or the likeInfo
- Publication number
- GB233684A GB233684A GB10750/25A GB1075025A GB233684A GB 233684 A GB233684 A GB 233684A GB 10750/25 A GB10750/25 A GB 10750/25A GB 1075025 A GB1075025 A GB 1075025A GB 233684 A GB233684 A GB 233684A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- diaphragm
- attached
- loud
- pole
- 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
- 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 |
---|---|
GB233684A true GB233684A (en) | 1926-04-01 |
Family
ID=8671232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10750/25A Expired GB233684A (en) | 1927-05-24 | 1925-04-24 | Improvements in telephonic receivers, transmitters or the like |
Country Status (2)
Country | Link |
---|---|
FR (3) | FR594032A (US06650917-20031118-M00005.png) |
GB (1) | GB233684A (US06650917-20031118-M00005.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 |
---|---|
FR34464E (US06650917-20031118-M00005.png) | 1929-06-19 |
FR594032A (fr) | 1925-09-04 |
FR33602E (fr) | 1928-11-29 |
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