FR853308A - Système de téléphonie multiple - Google Patents
Système de téléphonie multipleInfo
- Publication number
- FR853308A FR853308A FR853308DA FR853308A FR 853308 A FR853308 A FR 853308A FR 853308D A FR853308D A FR 853308DA FR 853308 A FR853308 A FR 853308A
- Authority
- FR
- France
- Prior art keywords
- phone system
- multiple phone
- phone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/04—Distributors combined with modulators or demodulators
- H04J3/045—Distributors with CRT
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
- H01J31/06—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with more than two output electrodes, e.g. for multiple switching or counting
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE211384X | 1938-04-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR853308A true FR853308A (fr) | 1940-03-15 |
Family
ID=5802401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR853308D Expired FR853308A (fr) | 1938-04-22 | 1939-04-21 | Système de téléphonie multiple |
Country Status (6)
Country | Link |
---|---|
US (1) | US2266671A (fr) |
BE (1) | BE433942A (fr) |
CH (1) | CH211384A (fr) |
FR (1) | FR853308A (fr) |
GB (1) | GB525594A (fr) |
NL (1) | NL65269C (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL76339C (fr) * | 1946-02-07 | |||
US2540835A (en) * | 1946-12-13 | 1951-02-06 | Bell Telephone Labor Inc | Cathode-ray device |
US2645741A (en) * | 1948-03-29 | 1953-07-14 | Westervelt Robert Alanson | Electronic scanning apparatus |
BE496113A (fr) * | 1949-06-04 | |||
US2921214A (en) * | 1956-04-11 | 1960-01-12 | Nat Res Dev | Line focus electron emission systems |
US3265870A (en) * | 1956-11-16 | 1966-08-09 | Bose Amar Gopal | Signal translation |
-
0
- BE BE433942D patent/BE433942A/xx unknown
- NL NL65269D patent/NL65269C/xx active
-
1939
- 1939-04-19 GB GB11853/39A patent/GB525594A/en not_active Expired
- 1939-04-20 CH CH211384D patent/CH211384A/de unknown
- 1939-04-20 US US269035A patent/US2266671A/en not_active Expired - Lifetime
- 1939-04-21 FR FR853308D patent/FR853308A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE433942A (fr) | |
GB525594A (en) | 1940-08-30 |
US2266671A (en) | 1941-12-16 |
CH211384A (de) | 1940-09-15 |
NL65269C (fr) |
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