U.S. federal trademark · Serial No. 73826251 · Reg. No. 1595103
MODEMS WITH FREQUENCY SHIFT KEYING CAPABILITY THAT USES ALTERNATING CURRENT POWER WIRING CONTAINED IN A COMMERCIAL OR RESIDENTIAL BUILDING AS A MEDIUM FOR TRANSMITTING DATA COMMUNICATION SIGNALS, AND THAT EMPLOYS STANDARD FREQUENCY MODULATION COMMUNICATION TECHNIQUES AND OPERATING SYSTEM COMPUTER PROGRAMS AS RELIABILITY ENHANCING FEATURES
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