BE431606A - - Google Patents
Info
- Publication number
- BE431606A BE431606A BE431606DA BE431606A BE 431606 A BE431606 A BE 431606A BE 431606D A BE431606D A BE 431606DA BE 431606 A BE431606 A BE 431606A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/76—Wired systems
- H04H20/77—Wired systems using carrier waves
- H04H20/81—Wired systems using carrier waves combined with telephone network over which the broadcast is continuously available
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWERÂ PLANTSÂ OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D17/00—Parachutes
- B64D17/40—Packs
- B64D17/52—Opening, e.g. manual
- B64D17/54—Opening, e.g. manual automatic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/14—Distribution frames
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Filters And Equalizers (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL93022D DE722609C (en) | 1937-08-05 | 1937-08-05 | Arrangement for telephone networks, in which, in addition to the low-frequency transmission, there is also carrier-frequency communication, especially for wireless systems |
| DEL93947D DE756081C (en) | 1937-08-05 | 1938-01-05 | Arrangement for telephone networks in which, in addition to the low-frequency communication, there is also a carrier-frequency message transmission, in particular a wire radio system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE431606A true BE431606A (en) | 1939-01-31 |
Family
ID=32073660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE431606D BE431606A (en) | 1937-08-05 | 1938-12-13 |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US2235058A (en) |
| BE (1) | BE431606A (en) |
| CH (1) | CH205372A (en) |
| DE (2) | DE722609C (en) |
| DK (1) | DK59606C (en) |
| FR (2) | FR841645A (en) |
| NL (1) | NL51936C (en) |
-
1937
- 1937-08-05 DE DEL93022D patent/DE722609C/en not_active Expired
-
1938
- 1938-01-05 DE DEL93947D patent/DE756081C/en not_active Expired
- 1938-07-30 CH CH205372D patent/CH205372A/en unknown
- 1938-08-02 FR FR841645D patent/FR841645A/en not_active Expired
- 1938-08-04 US US223019A patent/US2235058A/en not_active Expired - Lifetime
- 1938-12-03 DK DK59606D patent/DK59606C/en active
- 1938-12-05 NL NL90946A patent/NL51936C/xx active
- 1938-12-13 BE BE431606D patent/BE431606A/xx unknown
- 1938-12-15 FR FR50085D patent/FR50085E/en not_active Expired
-
1939
- 1939-01-12 US US250460A patent/US2212256A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE722609C (en) | 1942-07-13 |
| DK59606C (en) | 1942-03-30 |
| US2235058A (en) | 1941-03-18 |
| CH205372A (en) | 1939-06-15 |
| NL51936C (en) | 1942-02-16 |
| FR841645A (en) | 1939-05-24 |
| DE756081C (en) | 1953-09-07 |
| US2212256A (en) | 1940-08-20 |
| FR50085E (en) | 1939-11-20 |