NL92529C - - Google Patents
Info
- Publication number
- NL92529C NL92529C NL92529DA NL92529C NL 92529 C NL92529 C NL 92529C NL 92529D A NL92529D A NL 92529DA NL 92529 C NL92529 C NL 92529C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/14—Solid thermionic cathodes characterised by the material
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/14—Arrangements providing for calling or supervisory signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
- Interface Circuits In Exchanges (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL724582X | 1952-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL92529C true NL92529C (fr) |
Family
ID=19817747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL92529D NL92529C (fr) | 1952-04-09 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2920144A (fr) |
| DE (1) | DE916184C (fr) |
| FR (1) | FR1074361A (fr) |
| GB (1) | GB724582A (fr) |
| NL (1) | NL92529C (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2355642A (en) * | 1942-08-25 | 1944-08-15 | Western Union Telegraph Co | System for the conversion and retransmission of control signals |
| BE454346A (fr) * | 1943-03-08 | |||
| NL69785C (fr) * | 1947-02-21 | |||
| US2775647A (en) * | 1950-09-28 | 1956-12-25 | Hartford Nat Bank & Trust Co | Single sideband carrier-wave telephone system |
-
0
- NL NL92529D patent/NL92529C/xx active
-
1953
- 1953-04-01 US US346094A patent/US2920144A/en not_active Expired - Lifetime
- 1953-04-02 GB GB9237/53A patent/GB724582A/en not_active Expired
- 1953-04-05 DE DEN6996A patent/DE916184C/de not_active Expired
- 1953-04-07 FR FR1074361D patent/FR1074361A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE916184C (de) | 1954-08-05 |
| US2920144A (en) | 1960-01-05 |
| GB724582A (en) | 1955-02-23 |
| FR1074361A (fr) | 1954-10-05 |