BE543084A - - Google Patents
Info
- Publication number
- BE543084A BE543084A BE543084DA BE543084A BE 543084 A BE543084 A BE 543084A BE 543084D A BE543084D A BE 543084DA BE 543084 A BE543084 A BE 543084A
- 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
- H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT782966X | 1954-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE543084A true BE543084A (en:Method) |
Family
ID=11316427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE543084D BE543084A (en:Method) | 1954-12-21 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE543084A (en:Method) |
| GB (1) | GB782966A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL119047A (en) * | 1996-08-09 | 2001-07-24 | System Rm Ltd | Telephone accessory |
-
0
- BE BE543084D patent/BE543084A/xx unknown
-
1955
- 1955-11-23 GB GB33623/55A patent/GB782966A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB782966A (en) | 1957-09-18 |