BE493625A - - Google Patents
Info
- Publication number
- BE493625A BE493625A BE493625DA BE493625A BE 493625 A BE493625 A BE 493625A BE 493625D A BE493625D A BE 493625DA BE 493625 A BE493625 A BE 493625A
- Authority
- BE
- Belgium
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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1008—Earpieces of the supra-aural or circum-aural type
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1058—Manufacture or assembly
- H04R1/1075—Mountings of transducers in earphones or headphones
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH277157T | 1949-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE493625A true BE493625A (xx) |
Family
ID=4481104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE493625D BE493625A (xx) | 1949-02-05 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE493625A (xx) |
| CH (1) | CH277157A (xx) |
-
0
- BE BE493625D patent/BE493625A/xx unknown
-
1949
- 1949-02-05 CH CH277157D patent/CH277157A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH277157A (de) | 1951-08-15 |