Inventor
BLOCH ALAN
5 patents
⚠️ This page may combine multiple inventors who share the name “BLOCH ALAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TIE COMMUNICATIONS
3 patentsUS4173714ANov 6, 1979
Communication circuit with combined power feed and data transmission over a phantom channel
TIE COMMUNICATIONS91 citations91
US4338495AJul 6, 1982
Electronic key telephone systems
TIE COMMUNICATIONS21 citations77
US4140877AFeb 20, 1979
Muliple highway time division multiplexed PABX communication system
TIE COMMUNICATIONS20 citations68