|
RU2095871C1
|
|
Laminated shell core
|
|
SU1449434A1
|
|
Arrangement for monitoring switch point position
|
|
SU1294680A1
|
|
Device for monitoring switch position
|
|
SU1188036A1
|
|
Device for controlling signal light lamps
|
|
SU983807A1
|
|
Polarized electromagnetic change-over switch
|
|
SU755656A1
|
|
Control apparatus for point electric drive
|
|
SU759372A1
|
|
Apparatus for controlling point electric drive
|
|
SU1025560A1
|
|
Track circuit
|
|
SU740580A1
|
|
Railway point position monitor
|
|
SU1303474A1
|
|
Device for controlling switch alternating current machine motor
|
|
SU619381A1
|
|
Switch electric drive control device
|
