NL85238C - - Google Patents
Info
- Publication number
- NL85238C NL85238C NL85238DA NL85238C NL 85238 C NL85238 C NL 85238C NL 85238D A NL85238D A NL 85238DA NL 85238 C NL85238 C NL 85238C
- Authority
- NL
- Netherlands
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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
- G11B5/2651—Manufacture
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB291249X | 1949-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL85238C true NL85238C (fr) |
Family
ID=10286547
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL85238D NL85238C (fr) | 1949-11-16 | ||
| NL7208887.A NL157302B (nl) | 1949-11-16 | Werkwijze voor de bereiding van condensatieprodukten van benzofuroxan en derivaten daarvan. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7208887.A NL157302B (nl) | 1949-11-16 | Werkwijze voor de bereiding van condensatieprodukten van benzofuroxan en derivaten daarvan. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2700588A (fr) |
| BE (1) | BE499360A (fr) |
| CH (1) | CH291249A (fr) |
| FR (1) | FR1028968A (fr) |
| GB (1) | GB707637A (fr) |
| NL (2) | NL157302B (fr) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3008793A (en) * | 1961-11-14 | Variable coupling electromagnetic | ||
| US3201769A (en) * | 1951-05-04 | 1965-08-17 | Sperry Rand Corp | Information storage device |
| US2767254A (en) * | 1951-09-28 | 1956-10-16 | Rca Corp | Magnetic recording |
| US2785038A (en) * | 1952-06-02 | 1957-03-12 | Rca Corp | Magnetic transducer |
| US2848556A (en) * | 1954-08-02 | 1958-08-19 | Rca Corp | Magnetic recording transducer |
| US3063052A (en) * | 1955-03-14 | 1962-11-06 | Ralph B Atkinson | Ferographic recording head |
| US2905521A (en) * | 1955-06-21 | 1959-09-22 | Standard Coil Prod Co Inc | Digital recording system |
| US2987582A (en) * | 1955-08-12 | 1961-06-06 | Sperry Rand Corp | Multichannel magnetic erasing heads |
| US3011031A (en) * | 1955-10-12 | 1961-11-28 | Loewe | Arrangement of magnetic heads for tape recorders |
| US2922231A (en) * | 1956-04-26 | 1960-01-26 | Ibm | Magnetic transducer |
| US2998292A (en) * | 1956-10-05 | 1961-08-29 | Curtiss Wright Corp | Mounting of multi-channel magnetic transducer heads |
| US3007146A (en) * | 1957-01-15 | 1961-10-31 | Thompson Ramo Wooldridge Inc | Magnetic head locking device for a magnetic drum |
| US3001181A (en) * | 1957-09-16 | 1961-09-19 | Ex Cell O Corp | Means and method for setting and locking magnetic transducer heads in a magnetic drum device |
| US2965886A (en) * | 1958-09-29 | 1960-12-20 | Ex Cell O Corp | Device for setting and locking magnetic transducer heads associated with a magnetic data storage device |
| US3104381A (en) * | 1958-11-05 | 1963-09-17 | Burroughs Corp | Magnetic record transducer |
| US3058200A (en) * | 1959-01-15 | 1962-10-16 | Philips Corp | Method of orienting in coplanar arrangement the gaps of a plurality of magnetic heads |
| US3382325A (en) * | 1959-08-20 | 1968-05-07 | Iit Res Inst | Magnetic transducer system |
| NL243050A (fr) * | 1959-09-05 | |||
| US3239914A (en) * | 1959-11-13 | 1966-03-15 | Sony Corp | Method of making magnetic heads |
| US3247483A (en) * | 1963-03-26 | 1966-04-19 | Ibm | Character recognition system employing a plurality of spaced serial transducers |
| US3383667A (en) * | 1965-01-04 | 1968-05-14 | Sperry Rand Corp | Magnetic head spacing apparatus |
| JPS58105025U (ja) * | 1982-01-07 | 1983-07-16 | 日本ビクター株式会社 | マルチトラツク磁気ヘツド |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2026329A (en) * | 1928-05-30 | 1935-12-31 | Beading machine | |
| US2424633A (en) * | 1944-05-19 | 1947-07-29 | Interval Instr Inc | Acoustic reservoir for use in a magnetic sound recording and reproducing system |
| US2649506A (en) * | 1948-01-16 | 1953-08-18 | Int Standard Electric Corp | Negative feedback applied to magnetic recording |
| US2540654A (en) * | 1948-03-25 | 1951-02-06 | Engineering Res Associates Inc | Data storage system |
-
0
- NL NL85238D patent/NL85238C/xx active
- NL NL7208887.A patent/NL157302B/xx unknown
- BE BE499360D patent/BE499360A/xx unknown
-
1949
- 1949-11-16 GB GB29381/49A patent/GB707637A/en not_active Expired
-
1950
- 1950-11-10 US US195042A patent/US2700588A/en not_active Expired - Lifetime
- 1950-11-14 CH CH291249D patent/CH291249A/fr unknown
- 1950-11-14 FR FR1028968D patent/FR1028968A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1028968A (fr) | 1953-05-29 |
| CH291249A (fr) | 1953-06-15 |
| GB707637A (en) | 1954-04-21 |
| US2700588A (en) | 1955-01-25 |
| NL157302B (nl) | |
| BE499360A (fr) |