U.S. federal trademark · Serial No. 72125406 · Reg. No. 0732419
Filament Holders, Work Heaters, Electrodes, Glow Rings, Vacuum Safety Switches, Tungsten Filaments, Arc Furnaces, Vacuum Furnaces, Vacuum Drying Ovens, Gauge Tubes, Cathodic Etching Apparatus, Electrical Terminal Seals, Packaged Power Supplies, Television Tube Aluminizers, and High Vacuum Evaporative Equipment
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.