CH25813A
(en )
1903-06-30
Safety device on electrical overhead lines
CH25586A
(en )
1903-05-31
Protective device on electric rail vehicles
CH24489A
(en )
1902-12-31
Lightning protection device for electrical lines
CH28445A
(en )
1904-04-30
Lightning protection device for electrical lines
FR342186A
(en )
1904-09-01
Protective conduits for electrical conductors
CH23334A
(en )
1902-11-30
Protective device on doors
ES30424A1
(en )
1902-11-16
An overhead line electric traction safety device with protective wire.
CH30511A
(en )
1904-12-31
Clamping device on electrical apparatus for connecting lead wires
GB190325222A
(en )
1904-01-21
Protective Device for Electric Circuits.
CH34418A
(en )
1906-04-15
Safety device for electrical lines
CH32754A
(en )
1905-08-31
Switching device on electrical signal boxes
CH26319A
(en )
1903-08-31
Safety device for multi-phase overhead lines
CH46239A
(en )
1910-02-16
Fixing device for electrical conductors on insulators
ES31911A1
(en )
1903-07-16
Improvements in protective devices for electrical circuits.
CH32630A
(en )
1905-08-15
Device to enable the throwing distance to be increased on overvoltage protection devices for electrical lines
CH34174A
(en )
1906-03-15
Isolation device on electrical lines
ES29247A1
(en )
1902-04-01
A safety device for electric traction systems with overhead conductor.
CH26879A
(en )
1903-11-15
Automatic protective device on trams
CH29745A
(en )
1904-09-30
Lightning protection device
CH32361A
(en )
1905-07-15
Surge protection for electrical lines
CH27589A
(en )
1904-01-31
Lightning protection device
CH26066A
(en )
1903-07-31
Protective device on tram cars
CH26067A
(en )
1903-07-31
Protective device on tram cars
FR4811E
(en )
1905-10-20
Safety device for overhead electrical conductors
CH25417A
(en )
1903-05-15
Electrical contact apparatus