[54] COMPUTERIZED REPOSITORIES APPLIED TO EDUCATION
[75] Inventor: David M. Siefert, Englewood, Ohio
[73] Assignee: NCR Corporation, Dayton, Ohio
[21] Appl. No.: 334,776
[22] Filed: Nov. 4, 1994
Related U.S. Application Data
[63] Continuation-in-part of Ser. No. 217,065, Mar. 24, 1994.
[51] Int. CI.6 G09B 7/00; G09B 3/00
[52] U.S. CI 434/362; 434/350; 434/351;
434/323
[58] Field of Search 434/362, 350,
434/323, 351
[56] References Cited
U.S. PATENT DOCUMENTS
5,302,132 4/1994 Corder 434/156
5,303,042 4/1994 Lewis et al. .
5,306,154 4/1994 Ujita et al. .
5,310,349 5/1994 Daniels et al. .
5,318,450 6/1994 Carver .
FOREIGN PATENT DOCUMENTS
0674280 9/1995 European Pat. Off. .
9316454 8/1993 WIPO .
