BE475383A - - Google Patents
Info
- Publication number
- BE475383A BE475383A BE475383DA BE475383A BE 475383 A BE475383 A BE 475383A BE 475383D A BE475383D A BE 475383DA BE 475383 A BE475383 A BE 475383A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/08—Microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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 |
|---|---|---|---|
| GB264765X | 1945-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE475383A true BE475383A (https=) |
Family
ID=10244249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE475383D BE475383A (https=) | 1945-12-11 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE475383A (https=) |
| CH (1) | CH264765A (https=) |
| ES (1) | ES177012A1 (https=) |
| GB (1) | GB626453A (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1121117B (de) * | 1957-09-18 | 1962-01-04 | Holmberg & Co | Kleinlautsprecher mit bestimmtem Frequenzgang |
-
0
- BE BE475383D patent/BE475383A/xx unknown
-
1945
- 1945-12-11 GB GB33459/45A patent/GB626453A/en not_active Expired
-
1946
- 1946-12-11 CH CH264765D patent/CH264765A/de unknown
-
1947
- 1947-02-28 ES ES177012A patent/ES177012A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES177012A1 (es) | 1947-04-16 |
| GB626453A (en) | 1949-07-15 |
| CH264765A (de) | 1949-10-31 |