NL25688C - - Google Patents
Info
- Publication number
- NL25688C NL25688C NL25688DA NL25688C NL 25688 C NL25688 C NL 25688C NL 25688D A NL25688D A NL 25688DA NL 25688 C NL25688 C NL 25688C
- 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
-
- 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)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US294875XA | 1927-07-30 | 1927-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL25688C true NL25688C (https=) |
Family
ID=21849258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL25688D NL25688C (https=) | 1927-07-30 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE352792A (https=) |
| FR (1) | FR664693A (https=) |
| GB (1) | GB294875A (https=) |
| NL (1) | NL25688C (https=) |
-
0
- NL NL25688D patent/NL25688C/xx active
- BE BE352792D patent/BE352792A/xx unknown
-
1928
- 1928-06-25 GB GB18339/28A patent/GB294875A/en not_active Expired
- 1928-07-28 FR FR664693D patent/FR664693A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR664693A (fr) | 1929-09-06 |
| BE352792A (https=) | |
| GB294875A (en) | 1929-08-22 |