AT63271B
(en )
1914-02-10
Electrical warning system for guns.
AT63592B
(en )
1914-02-25
Protection circuit for electrical systems.
CH59523A
(en )
1913-06-02
Transmitter for telegraph systems
AT69059B
(en )
1915-06-10
Circuit arrangement for telephone systems.
AT71117B
(en )
1916-02-10
Circuit arrangement for telephone systems.
CH61092A
(en )
1913-09-01
Electrical signaling devices for hotels
CH59507A
(en )
1913-05-16
Insulating clamp for electrical lines
CH69567A
(en )
1915-07-01
System for alternating electrical multiple telegraphy
CH60216A
(en )
1913-07-01
Self-collecting telephone station for self-connecting telephone systems
CH60385A
(en )
1913-07-01
Connection sleeve for electrical lines
AT68462B
(en )
1915-04-26
Coupling for electrical lines.
CH60863A
(en )
1913-08-16
Automatic fuse for electrical lines
AT75619B
(en )
1919-02-25
Coupling for electrical lines.
CH69689A
(en )
1915-07-16
Circuit for direct current systems
AT82874B
(en )
1921-02-25
Protection device for electrical lines.
CH61801A
(en )
1913-10-16
Electric bell
CH61276A
(en )
1913-09-16
Switch boxes for electrical purposes
FR443957A
(en )
1912-10-07
Telegraph system
CH71406A
(en )
1916-01-03
Circuit arrangement for electrical signal systems
CH57168A
(en )
1912-12-16
Telephone system on houses
DK15548C
(en )
1912-01-29
Electric Bulb System.
CH53842A
(en )
1912-04-01
Fixing clamp for electrical lines
FR451763A
(en )
1913-04-26
Printer telegraphic receiver
GB191317417A
(en )
1914-07-29
Improved Circuit Arrangements for Telephone Systems.
GB191321222A
(en )
1913-12-04
Improved Circuit Arrangements for Telephone Systems.