|
DE343532C
(en)
*
|
1919-12-02 |
1921-11-04 |
W Rogowski Dr Ing |
Circuit arrangement for achieving uniformly increasing or decreasing electrical voltages over time, in particular for measuring purposes
|
|
DE488286C
(en)
*
|
1927-09-27 |
1930-01-24 |
Erich Hudec Dr Ing |
Arrangement for converting an alternating voltage into a synchronously running alternating voltage of lower frequency
|
|
FR681471A
(en)
*
|
1928-12-27 |
1930-05-15 |
Cfcmug |
Improvements to synchronization devices used in television, telephotography, telemechanics
|
|
GB325979A
(en)
*
|
1929-02-02 |
1930-03-06 |
Philips Nv |
Improved method of and apparatus for synchronising the movements of two devices arranged at a distance from one another
|
|
AT129945B
(en)
*
|
1929-12-07 |
1932-10-10 |
Telehor Aktien Ges |
Synchronization device for television receivers.
|
|
GB353056A
(en)
*
|
1930-04-15 |
1931-07-15 |
British Thomson Houston Co Ltd |
Improvements in electric synchronising systems
|
|
FR715912A
(en)
*
|
1930-05-01 |
1931-12-11 |
|
|
|
US2137039A
(en)
*
|
1931-06-17 |
1938-11-15 |
Rca Corp |
Method and apparatus for communication by television
|
|
AT135287B
(en)
*
|
1931-12-12 |
1933-11-10 |
Telefunken Gmbh |
Device for synchronizing cathode ray recorders.
|
|
GB394711A
(en)
*
|
1932-01-01 |
1933-07-03 |
Marconi Wireless Telegraph Co |
Improvements in or relating to television and like facsimile signalling systems
|
|
NL31724C
(en)
*
|
1932-03-17 |
|
|
|
|
GB423583A
(en)
*
|
1932-05-02 |
1935-02-01 |
Loewe Opta Gmbh |
Improvements in television relaxation oscillation generator systems
|
|
NL48526C
(en)
*
|
1932-06-07 |
|
|
|
|
GB423599A
(en)
*
|
1932-08-06 |
1935-02-05 |
Loewe Opta Gmbh |
Electric relay, more particularly for signalling and television purposes
|
|
GB424429A
(en)
*
|
1932-08-30 |
1935-02-21 |
Loewe Opta Gmbh |
Oscillation generators for scanning in television and like systems
|