CH395181A
(en )
1965-07-15
Information recording device
FR1229061A
(en )
1960-09-02
Improvements to information display devices
FR1200828A
(en )
1959-12-24
Improvements to magnetic recording systems
FR1244561A
(en )
1961-01-23
Improvements to information media
FR78473E
(en )
1962-07-27
Information recording device
FR1277182A
(en )
1961-11-24
Improvements to information recording devices
FR1245808A
(en )
1960-11-10
Information recording device
FR1334717A
(en )
1963-08-09
Improvements to information recording devices
BE598804A
(en )
1961-07-04
Improvements to information recording devices
FR1334142A
(en )
1963-08-02
Improvements to information recording devices
FR1334141A
(en )
1963-08-02
Improvements to information recording devices
FR1317049A
(en )
1963-02-01
Improvements to sound recording devices
FR1329814A
(en )
1963-06-14
Improvements to information recording circuits
FR1291947A
(en )
1962-04-27
Further training in recording devices
FR1349996A
(en )
1964-01-24
Improvements to digital information recording devices
FR1375989A
(en )
1964-10-23
Improvements to magnetic recording devices
BE611078A
(en )
1962-06-04
Information storage apparatus
FR1272128A
(en )
1961-09-22
Head-holder device for reading multitrack recordings
FR1316243A
(en )
1963-01-25
Improvements to information recording devices
FR80569E
(en )
1963-05-17
Improvements to magnetic recording systems
FR82072E
(en )
1963-12-20
Improvements to magnetic recording systems
FR1279815A
(en )
1961-12-22
Improvements to magnetic recording systems
BE609596A
(en )
1962-04-26
Improvements to magnetic recording systems
FR1253250A
(en )
1961-02-10
Improvements to devices for reading recorded information
BE597614A
(en )
1961-05-30
Improvements to devices for reading recorded information.