U.S. federal trademark · Serial No. 73454227 · Reg. No. 1347312
Key Telephone Systems Comprising Telephone Station Sets, Key Service Units, Power Supplies, Direct Station Selection Console, Intercom Paging Units, Loudspeakers, Flash Switch, Assembly Units and Structural Components
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.