FR930243A - Système téléphonique - Google Patents
Système téléphoniqueInfo
- Publication number
- FR930243A FR930243A FR930243DA FR930243A FR 930243 A FR930243 A FR 930243A FR 930243D A FR930243D A FR 930243DA FR 930243 A FR930243 A FR 930243A
- Authority
- FR
- France
- Prior art keywords
- telephone system
- telephone
- 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
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US526871A US2389666A (en) | 1944-03-17 | 1944-03-17 | Telephone system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR930243A true FR930243A (fr) | 1948-01-20 |
Family
ID=24099157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR930243D Expired FR930243A (fr) | 1944-03-17 | 1946-07-04 | Système téléphonique |
Country Status (3)
Country | Link |
---|---|
US (1) | US2389666A (fr) |
BE (1) | BE466457A (fr) |
FR (1) | FR930243A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2616980A (en) * | 1948-04-26 | 1952-11-04 | Hartford Nat Bank & Trust Co | Flip-flop circuit for operating a switch |
BE508995A (fr) * | 1951-03-16 |
-
1944
- 1944-03-17 US US526871A patent/US2389666A/en not_active Expired - Lifetime
-
1946
- 1946-07-04 FR FR930243D patent/FR930243A/fr not_active Expired
- 1946-07-05 BE BE466457D patent/BE466457A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
US2389666A (en) | 1945-11-27 |
BE466457A (fr) | 1946-08-31 |
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