Access protection device for support pole, in particular for high voltage power lines.
FR2694044A1
User safety device for use on a ladder.
FR2684766A1
Conductor identification device.
FR2621952A1
Level compensator for ladder
FR2621698A1
Phase matching detection device in a polyphase type power supply system
FR2614139A1
Self-locking contact clamp for earthing and short-circuit of electrical overhead lines
FR2611227A1
Ladder with an elevator
FR2610983A1
Interfitting ladder formed by a plurality of ladder elements
FR2585517A1
Self-blocking contact clamp for earthing or short-circuit of electrified overhead lines
FR2572524A1
Composite dynamometer
DE1103200B
Device for climbing round masts
DE1083371B
Earthing or current collection device of the screw clamp type for connection to electrical overhead lines, in particular to lines in high-voltage systems
