AT74347B
(en )
1918-05-10
Circuit arrangement for telephone exchanges which can be used preferably on warships.
AT79130B
(en )
1919-11-10
Selector without zero position for telephone systems.
AT72181B
(en )
1916-07-25
Circuit arrangement for private branch exchanges with several trunk lines.
AT75742B
(en )
1919-03-10
Circuit arrangement for automatically or semi-automatically operated telephone systems.
AT74045B
(en )
1917-12-10
Circuit arrangement for automatically or semi-automatically operated telephone systems with separate setting and speech connection paths.
AT74845B
(en )
1918-10-25
Circuit arrangement for telephone systems.
AT76557B
(en )
1919-05-26
Circuit arrangement for impulse relay relay.
AT72206B
(en )
1916-08-10
Circuit arrangement for call seekers in telephone systems.
AT74346B
(en )
1918-05-10
Thermal telephone.
AT44976B
(en )
1910-11-10
Circuit arrangement for automatic telephone exchanges.
AT74825B
(en )
1918-10-25
Telephone switching system.
AT68425B
(en )
1915-04-10
Circuit arrangement for telephone exchanges with automatic call distribution.
AT76292B
(en )
1919-04-25
Thermal telephone.
AT70550B
(en )
1915-11-25
Circuit arrangement for telephone exchanges with automatic call distribution.
AT62688B
(en )
1913-12-27
Circuit arrangement for telephone exchanges with automatic call distribution.
AT85547B
(en )
1921-09-10
Turntable.
AT74343B
(en )
1918-05-10
Self-collecting telephone station.
AT77404B
(en )
1919-07-25
Mobile kitchen.
AT87777B
(en )
1922-03-27
Siguslan arrangement for telephone systems.
AT74834B
(en )
1918-10-25
Circuit arrangement for telephone systems with amplifying devices for the voice streams.
AT44977B
(en )
1910-11-10
Circuit arrangement for automatic telephone exchanges.
AT56229B
(en )
1912-11-11
Circuit arrangement for automatic telephone systems.
AT25888B
(en )
1906-10-10
Circuit arrangement for telephone exchanges.
AT89305B
(en )
1922-09-11
Selector switch for telephone exchanges.
AT74107B
(en )
1918-02-11
Galvanic element.