AT82879B
(en )
1921-02-25
Directional wireless telegraphy and telephony facility.
AT63593B
(en )
1914-02-25
Receiving device for wireless telegraphy and telephony.
AT75587B
(en )
1919-02-25
Receiving arrangement for wireless telegraphy or telephony.
CH73044A
(en )
1916-08-01
Receiver system for wireless telegraphy and telephony
AT89335B
(en )
1922-09-11
Radio frequency machine transmitters for wireless telegraphy and telephony.
CH88841A
(en )
1921-04-01
Portable wireless telegraph station.
AT98598B
(en )
1924-11-25
Antenna arrangement for wireless telegraphy.
DK24373C
(en )
1919-04-14
Receiver for Wireless Telegraphs and Telephones.
DK33051C
(en )
1924-04-07
High Frequency Machine Transmitter for Wireless Telegraphy and Telephony.
DK30413C
(en )
1922-10-09
High frequency generator, especially useful for Radio Telegraphy and Radio Telephony.
DK21830C
(en )
1917-01-22
Transmission Station for Wireless Telegraphy and Telephony.
AT96066B
(en )
1924-02-25
Receiver circuit for wireless messaging.
AT80154B
(en )
1920-02-25
Cooling device for electrodes, especially from S-cooling device for electrodes, especially from serial spark gaps for wireless telegraphy. spark gaps for wireless telegraphy.
FR472273A
(en )
1914-11-27
Antenna for telegraphy and wireless telephony
CA175489A
(en )
1917-03-06
Wireless telegraphy and telephone apparatus
AT70559B
(en )
1915-11-25
Antenna arrangement at transmitting stations for wireless telegraphy and telephony.
DK13568C
(en )
1910-08-22
Transmitting and Receiving Antenna for Wireless Telegraphy Devices.
ES58402A1
(en )
1914-07-16
Improvements in antennas for telegraphy and wireless telephony.
CH107497A
(en )
1924-11-01
Reception loop antenna for wireless telegraphy and telephony.
DK21019C
(en )
1916-02-21
Device for Receiving Devices for Wireless Telegraphy and Telephony.
AU1219314B
(en )
1914-05-19
Improvements in transmitting arrangements for wireless telegraphy and telephony
AU1219314A
(en )
1914-05-19
Improvements in transmitting arrangements for wireless telegraphy and telephony
DK31465C
(en )
1923-03-26
Device for Antennas for Radio Telegraphy and Radio Telephony.
CA172542A
(en )
1916-10-17
Radio telegraph and telephone apparatus
DK21914C
(en )
1917-02-19
Transmitter device for wireless Telegraphy and Telephony.