NL275093A - - Google Patents
Info
- Publication number
- NL275093A NL275093A NL275093DA NL275093A NL 275093 A NL275093 A NL 275093A NL 275093D A NL275093D A NL 275093DA NL 275093 A NL275093 A NL 275093A
- 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
- H04R25/00—Electric hearing aids
- H04R25/48—Electric hearing aids using constructional means for obtaining a desired frequency response
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL275093 | 1962-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL275093A true NL275093A (https=) |
Family
ID=19753629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL275093D NL275093A (https=) | 1962-02-21 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1884933U (https=) |
| GB (1) | GB973479A (https=) |
| NL (1) | NL275093A (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK150840C (da) * | 1978-12-15 | 1988-06-06 | Gn Danavox As | Krogformet del til et bag-oeret-hoereapparat |
| FR2490485A1 (fr) * | 1980-09-22 | 1982-03-26 | Michas Frederic | Prothese auditive |
-
0
- NL NL275093D patent/NL275093A/xx unknown
-
1963
- 1963-02-16 DE DE1963N0014652 patent/DE1884933U/de not_active Expired
- 1963-02-18 GB GB646663A patent/GB973479A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB973479A (en) | 1964-10-28 |
| DE1884933U (de) | 1963-12-27 |