BE641937A - - Google Patents
Info
- Publication number
- BE641937A BE641937A BE641937A BE641937A BE641937A BE 641937 A BE641937 A BE 641937A BE 641937 A BE641937 A BE 641937A BE 641937 A BE641937 A BE 641937A BE 641937 A BE641937 A BE 641937A
- 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
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL302426D NL302426A (fi) | 1963-12-30 | ||
| GB4910062A GB1016716A (en) | 1963-12-30 | 1962-12-31 | Improvements relating to electro-acoustic transducers |
| BE641937A BE641937A (fi) | 1963-12-30 | 1963-12-30 | |
| FR958889A FR1379308A (fr) | 1963-12-30 | 1963-12-30 | Transducteurs électro-acoustiques |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE641937A BE641937A (fi) | 1963-12-30 | 1963-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE641937A true BE641937A (fi) | 1964-04-16 |
Family
ID=3845715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE641937A BE641937A (fi) | 1963-12-30 | 1963-12-30 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE641937A (fi) |
| GB (1) | GB1016716A (fi) |
| NL (1) | NL302426A (fi) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4773091A (en) * | 1986-06-16 | 1988-09-20 | Northern Telecom Limited | Telephone handset for use in noisy locations |
| FR2780233B1 (fr) | 1998-06-22 | 2000-08-04 | Alsthom Cge Alcatel | Boitier de telephone mobile |
-
0
- NL NL302426D patent/NL302426A/xx unknown
-
1962
- 1962-12-31 GB GB4910062A patent/GB1016716A/en not_active Expired
-
1963
- 1963-12-30 BE BE641937A patent/BE641937A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1016716A (en) | 1966-01-12 |
| NL302426A (fi) |