CH248550A
(en )
1947-05-15
Device for generating holes.
FR934838A
(en )
1948-06-02
Pulse selector system
CH256725A
(en )
1948-08-31
Method for message transmission by means of pulse modulation and pulse multi-channel system.
AT168849B
(en )
1951-08-25
Device for the transmission of signals by means of pulse time modulation
FR930779A
(en )
1948-02-04
Receiver for time modulated electrical pulses
ES176997A1
(en )
1947-04-16
TRANSMISSION SYSTEM BY FREQUENCY MODULATION
CH278793A
(en )
1951-10-31
Method for the transmission of signals.
CH259271A
(en )
1949-01-15
Device for low-distortion phase pulse modulation.
AT179263B
(en )
1954-08-10
Device for remote adjustment of clock systems
CH258469A
(en )
1948-11-30
Device for frequency modulation.
FR989132A
(en )
1951-09-05
Frequency modulator device
CA425559A
(en )
1945-02-13
Pulse modulation system
FR913266A
(en )
1946-09-03
Drill system
FR918865A
(en )
1947-02-20
Lightning signal transmission method
CH260204A
(en )
1949-02-28
Device for making injections.
FR917689A
(en )
1947-01-17
Pan device
FR921190A
(en )
1947-04-29
Grouped speaker device
AT167806B
(en )
1951-03-10
Device for receiving signals transmitted by means of pulses of constant amplitude
FR917696A
(en )
1947-01-17
Device for frequency modulation
AT178878B
(en )
1954-06-25
Device for making zippers
ES169021A1
(en )
1945-04-01
PROCEDURE OF SATURATION OF UNSATURATED HYDROCARBONS
AU128578B2
(en )
1948-07-15
Pulse number modulation system
ES171065A3
(en )
1945-11-01
PROCEDURE FOR OBTAINING INSECTICIDE PAINTS
FR909052A
(en )
1946-04-29
Modulation system
FR906606A
(en )
1946-01-15
Modulation system