NL104049C - - Google Patents
Info
- Publication number
- NL104049C NL104049C NL104049DA NL104049C NL 104049 C NL104049 C NL 104049C NL 104049D A NL104049D A NL 104049DA NL 104049 C NL104049 C NL 104049C
- 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
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/02—Loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB33182A DE1038115B (de) | 1954-10-28 | 1954-10-28 | Elektroakustischer Wandler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL104049C true NL104049C (fr) |
Family
ID=6963950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL104049D NL104049C (fr) | 1954-10-28 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1038115B (fr) |
| FR (1) | FR1133761A (fr) |
| GB (1) | GB803283A (fr) |
| NL (1) | NL104049C (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1157656B (de) * | 1959-01-28 | 1963-11-21 | Philips Nv | Elektrodynamischer Wandler |
| US5062140A (en) * | 1988-04-27 | 1991-10-29 | Sony Corporation | Induction speaker |
| DE4037648A1 (de) * | 1990-11-27 | 1991-07-11 | Kraemer Martin Dipl Ing | Elektrodynamischer lautsprecher ohne bewegliche anschluesse |
| CN208094750U (zh) * | 2017-03-17 | 2018-11-13 | 宁波升亚电子有限公司 | 头戴式耳机及其扬声装置 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1732644A (en) * | 1928-07-09 | 1929-10-22 | farrand | |
| US2492255A (en) * | 1944-12-26 | 1949-12-27 | John O Angehrn | Sealed-coil type vibratory magnet loudspeaker |
-
0
- NL NL104049D patent/NL104049C/xx active
-
1954
- 1954-10-28 DE DEB33182A patent/DE1038115B/de active Pending
-
1955
- 1955-10-17 GB GB2960355A patent/GB803283A/en not_active Expired
- 1955-10-26 FR FR1133761D patent/FR1133761A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1133761A (fr) | 1957-04-02 |
| GB803283A (en) | 1958-10-22 |
| DE1038115B (de) | 1958-09-04 |