76053691
May 22, 2000
May 21, 2002
Safety light curtains and control modules for controlling safety light curtains, both use in protecting workers from injury around and during the operation of manually operated machines, namely punch presses, welding equipment, drill presses, forging machines, die cutters, metal casting machines, metal tube and plate bending machines, grinding machines, lathes, and cutting, sawing and chopping machines, and excluding machines for the automatic assembly of electrical components
Electrical and Scientific Apparatus