73013658
Feb 19, 1974
May 31, 1977
HIGH VACUUM EQUIPMENT-NAMELY, SEALING FLANGES, JACKETS, FITTINGS, FEEDTHROUGHS, PORTS, METALLIC HOSES; COMBINATIONS OF THE ABOVE; AND PARTS AND ACCESSORIES THEREFOR
Metal GoodsHIGH VACUUM EQUIPMENT-NAMELY, IONIZATION GAUGES AND POWER SUPPLIES THEREFOR, COATING APPARATUSES AND SYSTEMS, PUMPS, VALVES, TRAPS, AND MANIPULATORS; COMBINATIONS OF THE ABOVE; AND HIGH VACUUM BELL JARS, PARTS AND ACCESSORIES THEREFOR
Electrical and Scientific Apparatus