NL19252C - - Google Patents
Info
- Publication number
- NL19252C NL19252C NL19252DA NL19252C NL 19252 C NL19252 C NL 19252C NL 19252D A NL19252D A NL 19252DA NL 19252 C NL19252 C NL 19252C
- Authority
- NL
- Netherlands
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
- H04R11/00—Transducers of moving-armature or moving-core type
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3024725A GB246771A (en) | 1924-09-01 | 1924-09-01 | Improvements in electromagnetic devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL19252C true NL19252C (https=) |
Family
ID=10304612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL19252D NL19252C (https=) | 1924-09-01 |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR589792A (https=) |
| GB (1) | GB246771A (https=) |
| NL (1) | NL19252C (https=) |
-
0
- NL NL19252D patent/NL19252C/xx active
- FR FR589792D patent/FR589792A/fr not_active Expired
-
1924
- 1924-09-01 GB GB3024725A patent/GB246771A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR589792A (https=) | 1925-06-05 |
| GB246771A (en) | 1926-02-01 |