73433877
Jul 11, 1983
Jun 10, 1986
ELECTRIC WELDERS AND PROGRAMMABLE ELECTRONIC CONTROLS THEREFOR, NAMELY, ARC WELDERS, COATED ELECTRODES, INFUSIBLE ELECTRODES, CONTINUOUS ELECTRODE FEEDING GAS SHIELDERS, CONTINUOUS ELECTRODE FEEDING CARBON ARC SHIELDERS AND GASEOUS ELECTRODES; RESISTANCE WELDERS, NAMELY, SPOT WELDERS, PROJECTION WELDERS, SEAM WELDERS, BUTT WELDERS AND ELECTRONIC CONTROLS THEREFOR; RESISTANCE HEATERS, NAMELY, ROD HEATERS, UPSETTING MACHINES AND BRAZERS; ROBOTIC CONTROLS, TRANSFER MACHINES AND MULTIPOINT WELDERS
Electrical and Scientific Apparatus