US2633362A
(en)
*
|
1946-12-31 |
1953-03-31 |
Armour Res Found |
Magnetic record player
|
US2676766A
(en)
*
|
1947-01-04 |
1954-04-27 |
Heller |
Removable magazine for tape
|
US2637561A
(en)
*
|
1947-02-08 |
1953-05-05 |
Lawrence H Connell |
Method and means of magnetic recording and reproducing sound
|
US2598716A
(en)
*
|
1947-04-16 |
1952-06-03 |
Daystrom Electric Corp |
Magazine for magnetic wire recorders
|
US2668059A
(en)
*
|
1947-04-26 |
1954-02-02 |
Int Electronics Co |
Equipment for use with multitrack magnetic tape records
|
US2694110A
(en)
*
|
1947-06-27 |
1954-11-09 |
Int Electronics Co |
Equipment for use with magnetic tape records
|
US2686845A
(en)
*
|
1948-02-28 |
1954-08-17 |
Int Electronics Co |
Equipment for use with elongated magnetic records
|
US2560254A
(en)
*
|
1948-03-26 |
1951-07-10 |
Rca Corp |
Device for separating the magnetic transducer and record member during rewind
|
US2658951A
(en)
*
|
1948-10-30 |
1953-11-10 |
Rca Corp |
Magnetic sound system
|
US2609457A
(en)
*
|
1949-03-16 |
1952-09-02 |
Thurm Leon |
Electromagnetic sound recorder and reproducer
|
US2676022A
(en)
*
|
1949-03-17 |
1954-04-20 |
Ernest G Van Leeuwen |
Magnetic recording
|
US2650830A
(en)
*
|
1949-05-19 |
1953-09-01 |
John T Potter |
Electronic memory device
|
US2620404A
(en)
*
|
1949-07-07 |
1952-12-02 |
Int Electronics Co |
Driving and scanning mechanism for magnetic tape handling equipment
|
US2713618A
(en)
*
|
1949-12-07 |
1955-07-19 |
Louis A Mcnabb |
Pocket recorder
|
US2637560A
(en)
*
|
1949-12-20 |
1953-05-05 |
Powell Announcer Corp |
Sound reproducing device using endless recording tapes
|
DE910603C
(de)
*
|
1950-04-23 |
1954-05-03 |
Loewe Opta Ag |
Magnetband- oder Drahtgeraet
|
US2647752A
(en)
*
|
1950-08-23 |
1953-08-04 |
Gen Electric |
Drive mechanism
|
US2680025A
(en)
*
|
1950-09-27 |
1954-06-01 |
J C Warren Corp |
Tape recorder and playback machine
|
US2703714A
(en)
*
|
1950-10-02 |
1955-03-08 |
Demby |
Magnetic sound recording and reproducing machine
|
BE508994A
(xx)
*
|
1951-02-13 |
|
|
|
US2706638A
(en)
*
|
1951-03-27 |
1955-04-19 |
Henry H Bruderlin |
Automatic sound reproducing device
|
US2702834A
(en)
*
|
1951-04-20 |
1955-02-22 |
Loewe Opta Ag |
Driving mechanism for tape-shaped sound record carriers
|
US2857164A
(en)
*
|
1951-08-01 |
1958-10-21 |
Armour Res Found |
Magnetic recorder
|
US2933319A
(en)
*
|
1953-02-25 |
1960-04-19 |
Proctor Dictating Machine Corp |
Sound recording and reproducing apparatus
|
US2924462A
(en)
*
|
1953-05-01 |
1960-02-09 |
Prudential Insurance Company O |
Magnetic tape
|
US2717282A
(en)
*
|
1953-07-15 |
1955-09-06 |
Int Electronics Co |
Equipment for use with magnetic tape records
|
US2935271A
(en)
*
|
1953-10-13 |
1960-05-03 |
Philips Corp |
Film guiding and tensioning device
|
US2962238A
(en)
*
|
1954-08-03 |
1960-11-29 |
Loewe Siegmund |
Arrangement for automatically controlling the speed of sound carriers in magnetic tape recorders
|
US2914266A
(en)
*
|
1955-02-28 |
1959-11-24 |
Lawrence H Connell |
Self-adjusting variable speed drive
|
US2898113A
(en)
*
|
1955-03-09 |
1959-08-04 |
Epsylon Res & Dev Co Ltd |
Multi-track tape recorders
|
US3693983A
(en)
*
|
1955-06-14 |
1972-09-26 |
Jerome H Lemelson |
Tape cartridge drive and transducing apparatus for the tape thereof
|
US2861752A
(en)
*
|
1956-01-24 |
1958-11-25 |
Gulf Research Development Co |
Film transport mechanism
|
US2998494A
(en)
*
|
1957-02-25 |
1961-08-29 |
Carl T Nations |
Recording and reproducing device
|
US2916574A
(en)
*
|
1957-10-28 |
1959-12-08 |
Aaron E Smith |
Remote control operating device for tape recorder
|
US2994903A
(en)
*
|
1958-02-06 |
1961-08-08 |
Honeywell Regulator Co |
Tape transport loop chamber apparatus
|
US3141625A
(en)
*
|
1959-06-18 |
1964-07-21 |
Elliott Brothers London Ltd |
Magnetic tape recorder
|
US3140359A
(en)
*
|
1959-07-07 |
1964-07-07 |
John N Rupard |
Plural track tape recorder
|
US3190970A
(en)
*
|
1960-11-16 |
1965-06-22 |
Saburo Akai |
Head assembly in a magnetic tape recorder
|
AT226451B
(de)
*
|
1960-12-23 |
1963-03-25 |
Wiener Radiowerke Ag |
Magnettongerät, insbesondere Diktiergerät
|
US3495046A
(en)
*
|
1964-08-12 |
1970-02-10 |
Iit Res Inst |
Magnetic recorder with pad to damp high frequency vibration of tape
|
US3377438A
(en)
*
|
1963-05-01 |
1968-04-09 |
Ralph J Samuels |
Pivotally mounted capstans
|
BE657769A
(xx)
*
|
1963-12-31 |
|
|
|
US3419686A
(en)
*
|
1964-05-28 |
1968-12-31 |
Vm Corp |
Multi-track bi-directional tape recorder with uni-directional actuated traversing transducers
|
GB1110796A
(en)
*
|
1964-07-24 |
1968-04-24 |
Clarke & Smith Mfg Company Ltd |
Improvements in and relating to sound reproducing apparatus
|
US3469037A
(en)
*
|
1964-08-12 |
1969-09-23 |
Iit Res Inst |
Magnetic transducer head with single record winding and plural reproduce windings
|
US3437762A
(en)
*
|
1964-08-26 |
1969-04-08 |
Lear Jet Ind Inc |
Multi-track tape cartridge player
|
US3515391A
(en)
*
|
1964-11-19 |
1970-06-02 |
Matsushita Electric Ind Co Ltd |
Automatically reversing magnetic recording and reproducing system
|
US3471653A
(en)
*
|
1965-03-24 |
1969-10-07 |
Teruo Kawata |
Transversely shiftable tape support for enabling multi-track recording or readout
|
US3372937A
(en)
*
|
1965-10-20 |
1968-03-12 |
Automatic Radio Mfg Co |
Electrical transducing
|
US3531126A
(en)
*
|
1965-12-29 |
1970-09-29 |
Pioneer Electronic Corp |
Device for adjusting position of stereophonic head of magnetic sound recorder-reproducer
|
US3583708A
(en)
*
|
1966-02-08 |
1971-06-08 |
Jay H Prager |
Automatic tape track selector
|
GB1161634A
(en)
*
|
1966-03-30 |
1969-08-13 |
Shigeo Suzuki |
Magnetic Head Positioning and Track Indicating Device
|
US3429578A
(en)
*
|
1966-05-06 |
1969-02-25 |
Sankei Seisakusho Kk |
Head switching apparatus of a tape recorder
|
US3482839A
(en)
*
|
1966-07-01 |
1969-12-09 |
Arvin Ind Inc |
Magnetic tape deck with cartridgeholding slide to accommodate different size cartridges
|
US3450409A
(en)
*
|
1966-07-18 |
1969-06-17 |
Motorola Inc |
Indexing mechanism
|
US3477725A
(en)
*
|
1966-08-22 |
1969-11-11 |
Radio Mfg Co Inc |
Recording track indicating wheel for magnetic tape cartridge player
|
US3604847A
(en)
*
|
1968-02-14 |
1971-09-14 |
Arvin Ind Inc |
Multitrack magnetic recording system
|
JPS4839723B1
(xx)
*
|
1969-01-22 |
1973-11-27 |
|
|
US3913140A
(en)
*
|
1969-07-08 |
1975-10-14 |
Alps Motorola |
Track indexing indicator for a tape player
|
BE756599A
(fr)
*
|
1969-11-10 |
1971-03-01 |
Ampex |
Circuit de commande pour enregistreur magnetique a deux directions
|
CA950114A
(en)
*
|
1970-03-16 |
1974-06-25 |
Hugo Korn |
Two channel and four channel, eight track tape player
|
US3678212A
(en)
*
|
1970-04-22 |
1972-07-18 |
Tapecon |
Planar drive adapter for cassette tape recorder
|
BE766204A
(fr)
*
|
1971-04-23 |
1971-09-16 |
Staar Dev Cy S A |
Machine a dicter.
|
US3966314A
(en)
*
|
1973-09-24 |
1976-06-29 |
Ncr Corporation |
Microform card including surface locating structure for elimination of Newton ring color banding and card utilization apparatus therefor
|
US4637088A
(en)
*
|
1984-06-20 |
1987-01-20 |
Badaracco John A |
Tape cleaning machine
|
NL9001203A
(nl)
*
|
1989-12-18 |
1991-07-16 |
Philips Nv |
Systeem voor het opnemen/weergeven van signalen op in cassettes ondergebrachte magneetband.
|