BE549248A - - Google Patents
Info
- Publication number
- BE549248A BE549248A BE549248DA BE549248A BE 549248 A BE549248 A BE 549248A BE 549248D A BE549248D A BE 549248DA BE 549248 A BE549248 A BE 549248A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US519955A US2900215A (en) | 1955-07-05 | 1955-07-05 | Transistor record driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE549248A true BE549248A (en:Method) |
Family
ID=24070570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE549248D BE549248A (en:Method) | 1955-07-05 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2900215A (en:Method) |
| BE (1) | BE549248A (en:Method) |
| CH (1) | CH335879A (en:Method) |
| FR (1) | FR1161711A (en:Method) |
| GB (1) | GB790974A (en:Method) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2945187A (en) * | 1956-08-24 | 1960-07-12 | Phillips Petroleum Co | Temperature compensated transistor amplifier |
| US3121874A (en) * | 1957-05-17 | 1964-02-18 | Gen Dynamics Corp | Magnetic data handling system |
| US3125759A (en) * | 1958-03-28 | 1964-03-17 | Magnetic recording device | |
| US3040321A (en) * | 1958-05-20 | 1962-06-19 | Jersey Prod Res Co | Seismic recording system |
| US3076969A (en) * | 1958-12-31 | 1963-02-05 | Sperry Rand Corp | Drive circuit for magnetic heads |
| US3129428A (en) * | 1959-11-16 | 1964-04-14 | Ibm | Safety circuit for transistor amplifier |
| US3217329A (en) * | 1960-05-03 | 1965-11-09 | Potter Instrument Co Inc | Dual track high density recording system |
| US3144598A (en) * | 1960-09-22 | 1964-08-11 | Rca Corp | Bidirectional motor control circuit |
| US3163804A (en) * | 1961-03-01 | 1964-12-29 | Jersey Prod Res Co | Circuit for driving a center tapped head winding |
| US3351822A (en) * | 1964-10-28 | 1967-11-07 | Suwa Seikosha Kk | Transistor circuit for generating pulses in alternate directions |
| US3400304A (en) * | 1966-02-25 | 1968-09-03 | Raytheon Co | Current reversing circuit |
| FR1509926A (fr) * | 1966-03-21 | 1968-01-19 | Saint Gobain Techn Nouvelles | Circuit multiplicateur scalaire |
| US3512171A (en) * | 1967-08-17 | 1970-05-12 | Burroughs Corp | Drive circuitry for high frequency digital recording |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2633402A (en) * | 1950-12-16 | 1953-03-31 | Monroe Calculating Machine | Magnetic spot recorder for statistical data |
| BE511224A (en:Method) * | 1951-09-13 | |||
| USB172500I5 (en:Method) * | 1951-09-15 | |||
| US2655609A (en) * | 1952-07-22 | 1953-10-13 | Bell Telephone Labor Inc | Bistable circuits, including transistors |
-
0
- BE BE549248D patent/BE549248A/xx unknown
-
1955
- 1955-07-05 US US519955A patent/US2900215A/en not_active Expired - Lifetime
-
1956
- 1956-07-03 GB GB20544/56A patent/GB790974A/en not_active Expired
- 1956-07-03 FR FR1161711D patent/FR1161711A/fr not_active Expired
- 1956-07-05 CH CH335879D patent/CH335879A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1161711A (fr) | 1958-09-03 |
| GB790974A (en) | 1958-02-19 |
| US2900215A (en) | 1959-08-18 |
| CH335879A (fr) | 1959-01-31 |