FR48418E - Combined driver and transformer electrodynamic loudspeaker - Google Patents
Combined driver and transformer electrodynamic loudspeakerInfo
- Publication number
- FR48418E FR48418E FR48418DA FR48418E FR 48418 E FR48418 E FR 48418E FR 48418D A FR48418D A FR 48418DA FR 48418 E FR48418 E FR 48418E
- Authority
- FR
- France
- Prior art keywords
- transformer
- electrodynamic loudspeaker
- combined driver
- driver
- combined
- 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR48418T | 1937-04-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR48418E true FR48418E (en) | 1938-02-03 |
Family
ID=8683761
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR822569D Expired FR822569A (en) | 1937-04-28 | 1936-09-10 | Combined driver and transformer electrodynamic loudspeaker |
FR48418D Expired FR48418E (en) | 1937-04-28 | 1937-04-28 | Combined driver and transformer electrodynamic loudspeaker |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR822569D Expired FR822569A (en) | 1937-04-28 | 1936-09-10 | Combined driver and transformer electrodynamic loudspeaker |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE423343A (en) |
FR (2) | FR822569A (en) |
GB (1) | GB506421A (en) |
-
0
- BE BE423343D patent/BE423343A/xx unknown
-
1936
- 1936-09-10 FR FR822569D patent/FR822569A/en not_active Expired
-
1937
- 1937-04-28 FR FR48418D patent/FR48418E/en not_active Expired
- 1937-08-26 GB GB23416/37A patent/GB506421A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB506421A (en) | 1939-05-26 |
BE423343A (en) | |
FR822569A (en) | 1938-01-04 |
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