Identifying changes in on-line data repositories | Patent Publication Number 20020120648

US 20020120648 A1
Patent NumberUS 06596030 B2
Application Number10077444
Filled DateFeb 15, 2002
Priority DateOct 27, 1995
Publication DateAug 29, 2002
Original AssigneeAt&t Company
Current AssigneeAt&t Company
Inventor/ApplicantsThomas J. Ball
Thomas J. Ball
Frederick Douglis
Frederick Douglis
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