BE434077A - - Google Patents
Info
- Publication number
- BE434077A BE434077A BE434077DA BE434077A BE 434077 A BE434077 A BE 434077A BE 434077D A BE434077D A BE 434077DA BE 434077 A BE434077 A BE 434077A
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB219316X | 1938-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE434077A true BE434077A (en) |
Family
ID=10171212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE434077D BE434077A (en) | 1938-05-18 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2245835A (en) |
| BE (1) | BE434077A (en) |
| CH (1) | CH219316A (en) |
| FR (1) | FR854285A (en) |
| GB (1) | GB514905A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2624808A (en) * | 1949-03-30 | 1953-01-06 | Nat Pneumatic Co Inc | Signaling switch device |
| US3277243A (en) * | 1962-12-19 | 1966-10-04 | Burroughs Corp | Telephone adapter |
| WO1986001059A1 (en) * | 1984-07-24 | 1986-02-13 | Fujitsu Limited | Device for unlocking a telephone provided with a mute function |
| KR20060113892A (en) * | 2004-02-20 | 2006-11-03 | 가부시기가이샤 템코 재팬 | Bone-conduction handset |
-
0
- BE BE434077D patent/BE434077A/xx unknown
-
1938
- 1938-05-18 GB GB14835/38A patent/GB514905A/en not_active Expired
-
1939
- 1939-05-03 CH CH219316D patent/CH219316A/en unknown
- 1939-05-04 FR FR854285D patent/FR854285A/en not_active Expired
- 1939-05-11 US US272951A patent/US2245835A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR854285A (en) | 1940-04-09 |
| CH219316A (en) | 1942-01-31 |
| US2245835A (en) | 1941-06-17 |
| GB514905A (en) | 1939-11-21 |