US3104881A
(en)
*
|
|
1963-09-24 |
|
Ferris |
US2513423A
(en)
*
|
1946-03-21 |
1950-07-04 |
Freeman H Owens |
Magnetic transducing apparatus
|
US2539837A
(en)
*
|
1947-01-06 |
1951-01-30 |
Indiana Steel Products Co |
Rotating magnetic reproducer
|
US2712572A
(en)
*
|
1947-03-27 |
1955-07-05 |
Int Electronics Co |
Superimposed plural recording
|
US2554582A
(en)
*
|
1947-06-06 |
1951-05-29 |
Bell Telephone Labor Inc |
Magnetic recorder
|
US2496047A
(en)
*
|
1947-06-18 |
1950-01-31 |
Rca Corp |
Art of recording and reproducing two-sided magnetic records
|
US2528699A
(en)
*
|
1948-02-18 |
1950-11-07 |
Rca Corp |
Invisible sound record editor
|
US2661397A
(en)
*
|
1948-05-08 |
1953-12-01 |
Gregory E Berens |
Magnetic recording
|
US2751437A
(en)
*
|
1950-10-19 |
1956-06-19 |
Raytheon Mfg Co |
Signal translation systems
|
FR1029216A
(fr)
*
|
1950-12-07 |
1953-05-29 |
|
Procédé et appareil pour l'enregistrement et la lecture d'images invisibles sur une surface magnétique
|
US2767254A
(en)
*
|
1951-09-28 |
1956-10-16 |
Rca Corp |
Magnetic recording
|
US3099709A
(en)
*
|
1952-05-27 |
1963-07-30 |
Ampex |
Tape recorder
|
US3020356A
(en)
*
|
1952-05-27 |
1962-02-06 |
Ampex |
Transversely recorded tape
|
US2886650A
(en)
*
|
1952-10-22 |
1959-05-12 |
Univ Illinois |
Recording device
|
US2909616A
(en)
*
|
1953-06-15 |
1959-10-20 |
Marty Rene |
Magnetic talking machine
|
US3080169A
(en)
*
|
1954-07-01 |
1963-03-05 |
Soundscriber Corp |
Magnetic tape channel-loading dictating machine
|
US2866012A
(en)
*
|
1955-05-06 |
1958-12-23 |
Ampex |
Magnetic tape recording and reproducing system
|
US2941035A
(en)
*
|
1955-07-23 |
1960-06-14 |
Bolkow Entwicklungen Kg |
Apparatus for signal transmission and reception
|
NL100433C
(fr)
*
|
1955-07-23 |
|
|
|
US2903521A
(en)
*
|
1955-09-12 |
1959-09-08 |
John V Ellison |
Band expansion recorder
|
US2856462A
(en)
*
|
1955-10-03 |
1958-10-14 |
Sound Scriber Corp |
Head drum assembly for magnetic tape
|
US2915595A
(en)
*
|
1955-10-17 |
1959-12-01 |
Soundscriber Corp |
Dual channel magnetic tape recorder
|
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
|
US2912517A
(en)
*
|
1955-12-13 |
1959-11-10 |
Ampex |
Magnetic tape apparatus
|
US2885256A
(en)
*
|
1955-12-16 |
1959-05-05 |
Frederic W Olmstead |
Recording system and method for displaced traces
|
US2954547A
(en)
*
|
1956-02-16 |
1960-09-27 |
Ibm |
Selector for a multiple track record of a magnetic memory system
|
US3047673A
(en)
*
|
1956-06-09 |
1962-07-31 |
Telefonbau & Normalzeit Gmbh |
Rotatable magnetic systems for transforming audio currents
|
US3022383A
(en)
*
|
1956-06-09 |
1962-02-20 |
Telefonbau & Normalzeit Gmbh |
Rotatable electromagnetic transducer system
|
US2885485A
(en)
*
|
1956-06-22 |
1959-05-05 |
Eigen David |
Sound editing device
|
US3024311A
(en)
*
|
1957-01-29 |
1962-03-06 |
Ampex |
Signal system
|
US3077587A
(en)
*
|
1957-09-06 |
1963-02-12 |
Telefonbau & Normalzeit Gmbh |
Magnetic recording and playback systems
|
US3012233A
(en)
*
|
1957-11-04 |
1961-12-05 |
Ibm |
Magnetic recording sensing means
|
NL234034A
(fr)
*
|
1957-12-10 |
|
|
|
US2985863A
(en)
*
|
1957-12-20 |
1961-05-23 |
Ibm |
Magnetic scanner
|
US3063040A
(en)
*
|
1958-01-13 |
1962-11-06 |
Thompson Ramo Wooldridge Inc |
Transducing method and system
|
US3075049A
(en)
*
|
1958-09-10 |
1963-01-22 |
Gordon Sumner |
Repetitive scanning of a record track on a fragment of a record
|
NL108647C
(fr)
*
|
1958-09-25 |
|
|
|
US3142840A
(en)
*
|
1959-06-24 |
1964-07-28 |
Ibm |
High-speed printing apparatus
|
US3107280A
(en)
*
|
1959-11-06 |
1963-10-15 |
Sony Corp |
Magnetic tape recorder
|
US3144521A
(en)
*
|
1959-11-06 |
1964-08-11 |
Sony Corp |
Magnetic tape recorder
|
NL144807B
(nl)
*
|
1963-12-31 |
1975-01-15 |
Philips Nv |
Werkwijze voor het vervaardigen van een roteerbare magneetkopdrager en magneetkopdrager, vervaardigd volgens de werkwijze.
|
DE2044598A1
(de)
*
|
1969-09-10 |
1972-03-30 |
Litton Business Systems Inc |
Magnetischer Wandler
|
US3621150A
(en)
*
|
1969-09-17 |
1971-11-16 |
Sanders Associates Inc |
Speech processor for changing voice pitch
|
US3725610A
(en)
*
|
1971-01-27 |
1973-04-03 |
K Wisner |
Rotatable magnetic transducer head
|
US4509084A
(en)
*
|
1981-05-11 |
1985-04-02 |
Tokyo Shibaura Denki Kabushiki Kaisha |
Rotary magnetic head
|
US4958711A
(en)
*
|
1987-10-02 |
1990-09-25 |
Nissan Motor Co., Ltd. |
Rotational speed differential responsive type joint
|
US4962492A
(en)
*
|
1988-04-29 |
1990-10-09 |
Laser Magnetic Storage International Company |
Magneto-optic data recording system, actuating device therefor and method of providing same
|
US5137130A
(en)
*
|
1989-05-10 |
1992-08-11 |
Nissan Motor Co., Ltd. |
Controlled type rotation speed difference sensitive coupling
|