FR572618A
(en )
1924-06-10
Conductor for high frequency currents
DK41006C
(en )
1929-10-28
Coupling device for generating electric alternating currents of any high frequency.
FR602316A
(en )
1926-03-17
Inductive limiter of alternating electric currents
DK34944C
(en )
1925-08-31
Pipe Generator for Generating High Frequency Electrical Oscillations.
DK33871C
(en )
1924-11-17
Device for electric operation of church bells.
DK35800C
(en )
1926-03-22
Coupling Device for Improving the Efficiency of Frequency Multiplication Transformers.
ES81057A1
(en )
1922-06-16
An improved procedure for the use of alternating currents.
CA236934A
(en )
1924-01-15
Means of obtaining intermittent unidirectional currents from alternating currents
DK32912C
(en )
1924-03-03
Coupling device for Parallel coupling of AC generators with relatively high Frequency.
CA244551A
(en )
1924-11-18
Generation of high frequency alternating currents
FR31231E
(en )
1927-01-26
Electric current rectifier
FR563871A
(en )
1923-12-15
High frequency alternator
DK34949C
(en )
1925-08-31
Device for Improving the Efficiency of Frequency Multiplication Transformers.
AT108115B
(en )
1927-11-25
High frequency electric induction furnace.
DK38338C
(en )
1928-01-16
Current transformer of the jacket type.
ES114732A1
(en )
1929-10-01
Electric rectifier of intense current.
ES88193A1
(en )
1924-04-01
An instant kettle device by means of electric current.
DK33965C
(en )
1924-12-15
Coupling for Generating High Frequency Oscillations of Low Frequency AC.
FR546620A
(en )
1922-11-20
Electrodynamic frequency meter
AT98610B
(en )
1924-11-25
Device for generating multiphase, high-frequency electrical oscillations.
ES84731A1
(en )
1923-10-01
Tomás electric trio clock.
CA248810A
(en )
1925-04-21
System of generation of alternating currents
ES107784A1
(en )
1928-08-16
An electric frequency transformer.
FR552836A
(en )
1923-05-08
Polyphase transformer
DK33538C
(en )
1924-08-11
High frequency transformer.