BE468890A - - Google Patents
Info
- Publication number
- BE468890A BE468890A BE468890DA BE468890A BE 468890 A BE468890 A BE 468890A BE 468890D A BE468890D A BE 468890DA BE 468890 A BE468890 A BE 468890A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
-
- 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
- H04R1/06—Arranging circuit leads; Relieving strain on circuit leads
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US261228XA | 1942-12-29 | 1942-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE468890A true BE468890A (mo) |
Family
ID=21830049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE468890D BE468890A (mo) | 1942-12-29 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE468890A (mo) |
| CH (1) | CH261228A (mo) |
| FR (1) | FR975644A (mo) |
-
0
- BE BE468890D patent/BE468890A/xx unknown
-
1946
- 1946-01-09 FR FR975644D patent/FR975644A/fr not_active Expired
-
1947
- 1947-09-24 CH CH261228D patent/CH261228A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR975644A (fr) | 1951-03-07 |
| CH261228A (de) | 1949-04-30 |