FR852823A - Telephone or similar systems - Google Patents
Telephone or similar systemsInfo
- Publication number
- FR852823A FR852823A FR852823DA FR852823A FR 852823 A FR852823 A FR 852823A FR 852823D A FR852823D A FR 852823DA FR 852823 A FR852823 A FR 852823A
- Authority
- FR
- France
- Prior art keywords
- telephone
- similar systems
- systems
- similar
- 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
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
- H04M1/272—Devices whereby a plurality of signals may be stored simultaneously with provision for storing only one subscriber number at a time, e.g. by keyboard or dial
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201076A US2294464A (en) | 1938-04-09 | 1938-04-09 | Impulse transmitter |
Publications (1)
Publication Number | Publication Date |
---|---|
FR852823A true FR852823A (en) | 1940-03-04 |
Family
ID=22744393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR852823D Expired FR852823A (en) | 1938-04-09 | 1939-04-07 | Telephone or similar systems |
Country Status (2)
Country | Link |
---|---|
US (1) | US2294464A (en) |
FR (1) | FR852823A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE466586A (en) * | 1943-08-28 | |||
US2463708A (en) * | 1945-03-10 | 1949-03-08 | Automatic Elect Lab | Impulse sender |
US2442702A (en) * | 1945-09-20 | 1948-06-01 | Bell Telephone Labor Inc | Selective signaling system |
US2661395A (en) * | 1948-11-05 | 1953-12-01 | Ericsson Telefon Ab L M | Variable resistance signaling system |
US2771599A (en) * | 1953-03-06 | 1956-11-20 | Marchant Calculators Inc | Readout mechanism |
-
1938
- 1938-04-09 US US201076A patent/US2294464A/en not_active Expired - Lifetime
-
1939
- 1939-04-07 FR FR852823D patent/FR852823A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2294464A (en) | 1942-09-01 |
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