CH302327A
(en )
1954-10-15
Method for the transmission of stereophonic signals.
CH238926A
(en )
1945-08-31
Method of obfuscating spoken messages.
CH263778A
(en )
1949-09-15
Method of making a point contact rectifier.
CH235865A
(en )
1944-12-31
Process for the preparation of an aminoarylcarbinol.
CH235680A
(en )
1944-12-15
Process for the television transmission of colored pictures.
CH237287A
(en )
1945-04-15
Method for the synchronization of a receiver of the picture telegraph.
CH270139A
(en )
1950-08-15
Pressure telegraph receiver.
CH263779A
(en )
1949-09-15
Method of manufacturing a crystal rectifier.
CH248479A
(en )
1947-05-15
Process for the preparation of aniline-N-d-riboside.
CH256137A
(en )
1948-07-31
Method for stabilizing the mean transmission frequency of a frequency-modulated transmitter.
CH241420A
(en )
1946-03-15
Method of isolating polyvinyl chloride.
CH278793A
(en )
1951-10-31
Method for the transmission of signals.
CH256364A
(en )
1948-08-15
Method for the transmission of tactile characters by means of frequency-modulated carrier waves
CH242277A
(en )
1946-04-30
Process for the preparation of a new pigment.
CH235287A
(en )
1944-11-30
Process for increasing the water resistance of a superpolyamide.
CH248918A
(en )
1947-05-31
Method for securing a plain bearing.
CH243489A
(en )
1946-07-15
Method for the transmission of signals with the aid of frequency-modulated carrier waves.
CH236708A
(en )
1945-02-28
Process for the preparation of a substituted thiazolecarboxamide.
DK65203C
(en )
1946-12-09
Method of Making Polyamides.
DK62410C
(en )
1944-07-06
Method of Making Polyamides.
DK70224C
(en )
1949-11-21
Coupling for removing reception interference.
CH244340A
(en )
1946-09-15
Method of making a catalyst.
CH296246A
(en )
1954-01-31
Process for the preparation of an azo dye.
DK68331C
(en )
1949-01-10
Process for the preparation of α-monohalogen lactams.
DK67466C
(en )
1948-08-23
Method for degreasing bones.