BE375422A - - Google Patents
Info
- Publication number
- BE375422A BE375422A BE375422DA BE375422A BE 375422 A BE375422 A BE 375422A BE 375422D A BE375422D A BE 375422DA BE 375422 A BE375422 A BE 375422A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US439986A US1805594A (en) | 1930-03-29 | 1930-03-29 | Communicating system |
| US442503A US2099115A (en) | 1930-03-29 | 1930-04-08 | Communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE375422A true BE375422A (de) | 1931-01-31 |
Family
ID=40498202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE375422D BE375422A (de) | 1930-03-29 | 1930-12-01 |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US1805594A (de) |
| BE (1) | BE375422A (de) |
| FR (1) | FR714881A (de) |
| GB (2) | GB375422A (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2510046A (en) * | 1947-04-18 | 1950-05-30 | Zenith Radio Corp | Radio-wire signaling system |
| BE541664A (de) * | 1954-09-30 | |||
| DE3009404A1 (de) * | 1980-03-12 | 1981-09-17 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Vorrichtung zum einstellen eines bewegbaren elektroakutischen schallwandlers |
| US4845636A (en) * | 1986-10-17 | 1989-07-04 | Walker Mark E | Remote transaction system |
| US5202957A (en) * | 1990-08-09 | 1993-04-13 | Future Communications | Full motion video telephone system |
| US20020087413A1 (en) * | 2000-09-08 | 2002-07-04 | Agent Ai, Inc. | Vending machine adapted to vend age-restricted items |
-
1930
- 1930-03-29 US US439986A patent/US1805594A/en not_active Expired - Lifetime
- 1930-04-08 US US442503A patent/US2099115A/en not_active Expired - Lifetime
- 1930-12-01 BE BE375422D patent/BE375422A/xx unknown
-
1931
- 1931-03-27 GB GB9425/31A patent/GB375422A/en not_active Expired
- 1931-03-28 GB GB9470/31A patent/GB375785A/en not_active Expired
- 1931-03-28 FR FR714881D patent/FR714881A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR714881A (fr) | 1931-11-30 |
| GB375422A (en) | 1932-06-27 |
| GB375785A (en) | 1932-06-28 |
| US2099115A (en) | 1937-11-16 |
| US1805594A (en) | 1931-05-19 |