73063585
Sep 19, 1975
Aug 15, 1978
RESISTANCE WELDING MACHINES, WELDING PRESSES, MACHINES FOR PERFORMING WELDING OPERATIONS, PARTICULARLY, ON PARTS OF MOTOR VEHICLES, HOUSEHOLD APPLIANCES AND RADIATORS; FRICTION WELDING MACHINES; HAND-, MECHANICALLY- OR HYDRAULICALLY-OPERATED AUXILIARY DEVICES FOR HOLDING PARTS TO BE WELDED; ACCESSORIES-NAMELY, ROLLER BLOCKS AND SUPPORTS FOR AUTOMATIC WELDING MACHINES
MachineryRESISTANCE WELDING TRANSFORMERS AS WELL AS WELDING LINES ASSEMBLED THEREOF; WELDING RECTIFIERS; ELECTRICAL UNITS FOR LIMITING WELDING TIME; CONTRACTORS AS WELL AS CONTROL DEVICES FOR WELDING MACHINES, OPERATING ON THE IGNITRON, THYRISTOR OR TRANSISTOR PRINCIPLE
Electrical and Scientific Apparatus