BE489569A - - Google Patents
Info
- Publication number
- BE489569A BE489569A BE489569DA BE489569A BE 489569 A BE489569 A BE 489569A BE 489569D A BE489569D A BE 489569DA BE 489569 A BE489569 A BE 489569A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
-
- 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
-
- 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
- H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Structure Of Telephone Exchanges (AREA)
- Pivots And Pivotal Connections (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH671052X | 1948-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE489569A true BE489569A (sv) |
Family
ID=4527663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE489569D BE489569A (sv) | 1948-06-14 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2522119A (sv) |
| BE (1) | BE489569A (sv) |
| CH (1) | CH272956A (sv) |
| FR (1) | FR1013988A (sv) |
| GB (1) | GB671052A (sv) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3217313A (en) * | 1963-01-07 | 1965-11-09 | Naxon Irving | Traveling message sign control apparatus having direct magnetic selection switch control elements |
| US3017024A (en) * | 1953-06-01 | 1962-01-16 | Fmc Corp | Classification and recording machine for handling eggs |
| US2905936A (en) * | 1954-01-27 | 1959-09-22 | Standard Coil Prod Co Inc | Memory delay unit |
| US2861131A (en) * | 1954-01-27 | 1958-11-18 | Siemens Ag | Automatic telephone system |
| US2935251A (en) * | 1954-11-01 | 1960-05-03 | Ibm | Data storage apparatus |
| US2953647A (en) * | 1956-11-09 | 1960-09-20 | Bell Telephone Labor Inc | Magnetic drum repertory dialer |
| US2941043A (en) * | 1957-08-13 | 1960-06-14 | Bell Telephone Labor Inc | Magnetic drum repertory dialer |
| US3217312A (en) * | 1961-10-14 | 1965-11-09 | Naxon Irving | Traveling message sign control apparatus having rotating members which bear switch actuating elements |
| US3098899A (en) * | 1962-02-13 | 1963-07-23 | Automatic Elect Lab | Universal spotter cam arrangement |
| US4522518A (en) * | 1983-07-07 | 1985-06-11 | Schmidt John R | Character data input keyboard arrangement having central matrix of keys |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE360486A (sv) * | 1928-01-10 | |||
| US2395539A (en) * | 1943-12-31 | 1946-02-26 | Bell Telephone Labor Inc | Telephone call transmitter |
-
0
- BE BE489569D patent/BE489569A/xx unknown
-
1948
- 1948-06-14 CH CH272956D patent/CH272956A/fr unknown
-
1949
- 1949-04-16 US US879690A patent/US2522119A/en not_active Expired - Lifetime
- 1949-06-13 FR FR1013988D patent/FR1013988A/fr not_active Expired
- 1949-06-13 GB GB15645/49A patent/GB671052A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB671052A (en) | 1952-04-30 |
| US2522119A (en) | 1950-09-12 |
| FR1013988A (fr) | 1952-08-06 |
| CH272956A (fr) | 1951-01-15 |