AT43909B
(en )
1910-09-10
Circuit arrangement for automatic telephone systems.
AT62699B
(en )
1913-12-27
Circuit arrangement for automatic telephone systems.
AT43518B
(en )
1910-08-10
Circuit arrangement for automatic telephone exchanges.
AT55320B
(en )
1912-09-10
Circuit arrangement for automatic telephone exchanges.
AT42557B
(en )
1910-06-10
Circuit arrangement for external traffic in automatic telephone systems.
AT66318B
(en )
1914-08-25
Circuit arrangement for automatic switches in telephone exchanges.
DK8494C
(en )
1906-05-28
Setting device for automatic Telephone Systems.
CH53340A
(en )
1912-02-16
Automatic telephone system
CH53341A
(en )
1912-02-16
Automatic telephone system
CH53855A
(en )
1912-04-01
Automatic telephone system
CH56280A
(en )
1912-10-16
Automatic telephone system
DK10201C
(en )
1907-11-11
Automatic Telephone Centers.
ES43970A1
(en )
1908-10-01
An automatic telephone communication system.
AT68453B
(en )
1915-04-10
Telephone relay.
FR411090A
(en )
1910-06-07
Automatic telephone system
ES42762A1
(en )
1908-04-01
An automatic regulator.
AT23616B
(en )
1906-03-26
Circuit arrangement for telephone systems with main and secondary units.
AT36409B
(en )
1909-02-25
Bangers for firearms.
CH36228A
(en )
1906-12-31
Telephone installation
AT39863B
(en )
1909-11-25
Automatic block signaling device.
ES38306A1
(en )
1906-07-01
An open filter.
AT80136B
(en )
1920-02-25
Circuit arrangement for telephone systems. Circuit arrangement for telephone systems.
AT69059B
(en )
1915-06-10
Circuit arrangement for telephone systems.
AT71117B
(en )
1916-02-10
Circuit arrangement for telephone systems.
AT42118B
(en )
1910-05-10
Call counter circuit.