CH40100A
(en )
1908-06-01
Cable line system for local telephone networks
CH39532A
(en )
1908-03-16
Telephone system
CH39781A
(en )
1908-04-16
Mast for transmission lines
FR376604A
(en )
1907-08-14
Conduits for electric cables
CH40704A
(en )
1908-08-17
Protective device for telephone receiver
FR393411A
(en )
1908-12-22
Telephone cable for long distances
FR389133A
(en )
1908-09-01
Support for telephone receiver
DK7821C
(en )
1905-09-11
Connection cable for Telephone system.
FR383620A
(en )
1908-03-13
Connection for cables
CH41340A
(en )
1908-10-16
Self-collecting telephone station
FR373844A
(en )
1907-05-28
Distribution system for telephone networks
AT43909B
(en )
1910-09-10
Circuit arrangement for automatic telephone systems.
CH36228A
(en )
1906-12-31
Telephone installation
DK7399C
(en )
1905-03-20
Air-insulated Telephone and Telegraph Cable.
CH38647A
(en )
1907-11-30
Telegraph installation
FR394180A
(en )
1909-01-16
Three-wire system for telephone systems
FR377966A
(en )
1907-09-20
Telephone transmitter
FR369902A
(en )
1907-01-24
Conductor cable
FR371907A
(en )
1907-03-19
Insulator for tension cables
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
FR374988A
(en )
1907-06-27
Telephone system
CA104500A
(en )
1907-04-02
Support for telegraph line wires