74605556
Nov 10, 1994
Jul 22, 1997
precision welding and bonding equipment, namely, precision laser welders, welding inverters, electrical power supplies for welding, weld heads, electrical power supplies for reflow soldering and reflow soldering heads, electronic welding control systems, namely, welding heads, electrode supports, electronic motor drives and electrical power supplies for controlling force, displacement, current and voltage of a resistance weld, timers and weld monitors for checking and monitoring the current and voltage at a weld site, welding electrodes and thermodes
Electrical and Scientific Apparatus