ES176296A1
(en )
1947-07-16
IMPROVEMENTS IN THE ANTENNAS
CH226354A
(en )
1943-03-31
Arrangement in telephone systems.
CH219789A
(en )
1942-02-28
Arrangement to reduce the electrical strength in any media.
GB534312A
(en )
1941-03-04
Improvements in connection with filters
CH256713A
(en )
1948-08-31
Arrangement for the transmission of electrical signals.
GB545918A
(en )
1942-06-18
Improvements in or relating to gear-pumps
CH228100A
(en )
1943-07-31
Arrangement for resistance transformation.
GB543098A
(en )
1942-02-10
Improvements in or relating to turbines
DK61808C
(en )
1944-01-17
Electric Switchgear with electric Unloading.
CH227892A
(en )
1943-07-15
Switch built into concentric high frequency lines.
ES146814A3
(en )
1941-03-01
Improvements in and related to iron manufacturing.
ES146825A3
(en )
1941-03-01
Improvements in and related to iron manufacturing.
ES146211A1
(en )
1941-01-01
Improvements in the electric plates.
CH232223A
(en )
1944-05-15
Arrangement for short-circuit current limitation.
DK56749C
(en )
1939-10-02
Cabinet with Jalousilukke.
ES147857A1
(en )
1942-06-01
Perfeccionamientos in motosegadoras.
ES150397A1
(en )
1942-06-01
IMPROVEMENTS IN THE LOCKS
ES149544A1
(en )
1942-06-01
IMPROVEMENTS IN LIGHTNING
ES150224A1
(en )
1942-06-01
IMPROVEMENTS IN SHAVINGS
ES151204A1
(en )
1942-09-01
IMPROVEMENTS IN RADIOCRECEPTORS
ES147966A1
(en )
1941-10-01
Improvements in or relating to generators of electric oscillations, amplifiers and the like.
FI19408A
(en )
1942-11-10
Helfasoner strumpa with intagningar i skaften
ES144455A1
(en )
1939-11-01
Improvements in the electrodes.
ES149867A1
(en )
1942-06-01
IMPROVEMENTS IN THE TELARES
ES151177A1
(en )
1942-09-01
IMPROVEMENTS IN THE GASÓGENOS