AT63622B
(en )
1914-02-25
Bangers for firearms.
AT71117B
(en )
1916-02-10
Circuit arrangement for telephone systems.
AT69059B
(en )
1915-06-10
Circuit arrangement for telephone systems.
AT80136B
(en )
1920-02-25
Circuit arrangement for telephone systems. Circuit arrangement for telephone systems.
GB191317417A
(en )
1914-07-29
Improved Circuit Arrangements for Telephone Systems.
GB191321222A
(en )
1913-12-04
Improved Circuit Arrangements for Telephone Systems.
AT65751B
(en )
1914-07-25
Circuit for semi-automatic telephone systems.
AT71599B
(en )
1916-04-25
Circuit for section relay.
AT73118B
(en )
1917-02-26
Circuit arrangement for telephone systems with central battery operation.
CH57659A
(en )
1913-03-01
Device for semi-automatic telephone systems
CH60216A
(en )
1913-07-01
Self-collecting telephone station for self-connecting telephone systems
AT71121B
(en )
1916-02-10
Circuit arrangement for telephone systems operated with voters.
CH62469A
(en )
1913-12-01
Telephone system
GB191322850A
(en )
1914-06-18
Improved Circuit Arrangements for Automatic Telephone Systems.
DK16820C
(en )
1912-12-23
Telephone system selector.
CH57168A
(en )
1912-12-16
Telephone system on houses
AT63592B
(en )
1914-02-25
Protection circuit for electrical systems.
AT62699B
(en )
1913-12-27
Circuit arrangement for automatic telephone systems.
CH59524A
(en )
1913-06-02
Arrangement for automatic telephone systems
CH59025A
(en )
1913-04-16
Telephone system dialers
AT75593B
(en )
1919-02-25
Circuit arrangement for telephone systems with dialer operation.
CH69568A
(en )
1915-07-01
Transmitter for telephone lines
DK18997C
(en )
1914-07-06
Telephone system.
DK22593C
(en )
1917-11-19
Telephone system.
AT75556B
(en )
1919-02-25
Circuit for telephone systems with dialer operation.