NL43727C - - Google Patents
Info
- Publication number
- NL43727C NL43727C NL43727DA NL43727C NL 43727 C NL43727 C NL 43727C NL 43727D A NL43727D A NL 43727DA NL 43727 C NL43727 C NL 43727C
- Authority
- NL
- Netherlands
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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/02—Transducers using more than one principle simultaneously
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US463666XA | 1934-10-04 | 1934-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL43727C true NL43727C (fr) |
Family
ID=21943068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL43727D NL43727C (fr) | 1934-10-04 |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR795937A (fr) |
| GB (1) | GB463666A (fr) |
| NL (1) | NL43727C (fr) |
-
0
- NL NL43727D patent/NL43727C/xx active
-
1935
- 1935-10-04 FR FR795937D patent/FR795937A/fr not_active Expired
- 1935-10-04 GB GB27507/35A patent/GB463666A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB463666A (en) | 1937-04-05 |
| FR795937A (fr) | 1936-03-25 |