U.S. federal trademark · Serial No. 74235455
telephone and telecommunications analog and digital switching and transmission equipment; namely, plug-ins, common and message channel units, data units, 1A through 5ESS switches, trunk cards, urban cards, repeaters, signaling and multi-frequency transmission units, processors and modems, as well as replacement parts for each of the above
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.