Scr chopper circuit

Scr control for inductive power circuit

Scr controlled universal motor

Scr d.c. interrupter

Scr firing circuit

Scr firing circuit

Scr inverter systems

Scr motor speed control systems with trigger stabilization...

Scr-rectifier controlled arc welding power source

Screw fastening device

Screw retaining and aligning cover plate

Screwless outlet box covering

Sea-going and barge assembly

Seal

Seal device for isolating bearing assemblies in a motor

Seal for a cable connector

Seal for cable splice closures

Seal for mineral insulation cable joints

Seal for sealing an aperture

Seal made of a cross-linked elastomer