FR34820E - - Google Patents
Info
- Publication number
- FR34820E FR34820E FR34820DA FR34820E FR 34820 E FR34820 E FR 34820E FR 34820D A FR34820D A FR 34820DA FR 34820 E FR34820 E FR 34820E
- 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/045—Mounting
-
- 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
- H04R9/025—Magnetic circuit
-
- 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
- H04R9/06—Loudspeakers
- H04R9/063—Loudspeakers using a plurality of acoustic drivers
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 (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1483A US1707617A (en) | 1925-01-09 | 1925-01-09 | Sound-reproducing apparatus |
| GB3254326 | 1926-12-23 | ||
| GB3254426A GB287631A (en) | 1926-12-23 | 1926-12-23 | Improvements relating to devices for the interconversion of mechanical and electrical oscillations |
| GB1770927A GB297894A (en) | 1927-07-04 | 1927-07-04 | Improvements relating to devices for the interconversion of mechanical and electrical vibrations |
| GB1915127 | 1927-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR34820E true FR34820E (da) | 1927-10-21 |
Family
ID=27516193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR34820D Expired FR34820E (da) | 1925-01-09 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE347485A (da) |
| FR (1) | FR34820E (da) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0081780A1 (de) * | 1981-12-10 | 1983-06-22 | International Standard Electric Corporation | Elektrodynamischer Wandler |
-
0
- BE BE347485D patent/BE347485A/fr unknown
- FR FR34820D patent/FR34820E/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0081780A1 (de) * | 1981-12-10 | 1983-06-22 | International Standard Electric Corporation | Elektrodynamischer Wandler |
Also Published As
| Publication number | Publication date |
|---|---|
| BE347485A (da) |