NL72748C - - Google Patents
Info
- Publication number
- NL72748C NL72748C NL72748DA NL72748C NL 72748 C NL72748 C NL 72748C NL 72748D A NL72748D A NL 72748DA NL 72748 C NL72748 C NL 72748C
- 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
- G11B5/86—Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2622155X | 1947-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL72748C true NL72748C (da) |
Family
ID=10911975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL72748D NL72748C (da) | 1947-11-05 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2622155A (da) |
| NL (1) | NL72748C (da) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2960686A (en) * | 1955-10-17 | 1960-11-15 | Gaillard Robert De | Method of and device for recording and reproducing on magnetic carriers at any speed |
| US2986609A (en) * | 1957-11-20 | 1961-05-30 | Hoshino Yasushi | Apparatus of synchronous recording on a number of magnetic recording sheets |
| US3474427A (en) * | 1964-11-23 | 1969-10-21 | Data Disc Inc | Data storage system |
| US3406264A (en) * | 1964-12-11 | 1968-10-15 | Decca Ltd | Manufacture and testing of phonograph records |
| US3805284A (en) * | 1972-09-18 | 1974-04-16 | Burroughs Corp | Digital data copy duplication method and apparatus utilizing bit to bit data verification |
| US3936874A (en) * | 1973-10-11 | 1976-02-03 | Glen Miller | Multi-format tape duplicator |
| US4040099A (en) * | 1975-07-30 | 1977-08-02 | Cook Laboratories, Inc. | Method and apparatus for preparing recorded program material to render detectable unauthorized magnetic tape duplications, and method and apparatus for detecting such duplications |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1974911A (en) * | 1929-12-27 | 1934-09-25 | Buecker Heinrich | Television |
| US2117052A (en) * | 1936-10-07 | 1938-05-10 | American Telephone & Telegraph | Telegraph tape comparator |
| US2251828A (en) * | 1939-08-08 | 1941-08-05 | Jr John Hays Hammond | Scanning comparator |
| US2503925A (en) * | 1946-03-14 | 1950-04-11 | Armour Res Found | Magnetic recorder for producing multiple duplicate records |
| US2530562A (en) * | 1948-06-30 | 1950-11-21 | Rca Corp | Monitoring system for magnetic recording |
-
0
- NL NL72748D patent/NL72748C/xx active
-
1948
- 1948-11-02 US US57969A patent/US2622155A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2622155A (en) | 1952-12-16 |