Inventor
ULCH BRYAN D
7 patents
⚠️ This page may combine multiple inventors who share the name “ULCH BRYAN D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ATO INC
5 patentsUS4218690AAug 19, 1980
Self-contained programmable terminal for security systems
ATO INC97 citations94
US4216375AAug 5, 1980
Self-contained programmable terminal for security systems
ATO INC75 citations94
US4097727AJun 27, 1978
Circuit for controlling automatic off-line operation of an on-line card reader
ATO INC29 citations80
US4142097AFeb 27, 1979
Programmable keyboard sequencing for a security system
ATO INC12 citations72
US4155073AMay 15, 1979
System for monitoring integrity of communication lines in security systems having remote terminals
ATO INC19 citations69