2047446-A is referenced by 4 patents.

Title
Multiprocessor information processing system having fault detection function
Application Number
GB19800012403 19800415
Publication Number
2047446 (A)
Application Date
April 15, 1980
Publication Date
November 26, 1980
Assignee
Hitachi
IPC
G06F 11/30
H04Q 03/545
H04M 03/22
G06F 11/30
G06F 11/00
G06F 15/16
H04Q 03/545
H04M 03/22
G06F 15/177
G06F 11/30
G06F 11/00
G06F 15/16
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