73710847
Feb 12, 1988
Jan 11, 1994
COMPUTERS, INPUT AND OUTPUT UNITS FOR COMPUTERS, COMPUTER PROGRAMS FOR USE IN THE FIELD OF FREE TEXT RETRIEVAL SYSTEMS FOR DATA BASE PROCESSING, PRERECORDED DATA, MEMORY UNITS FOR USE WITH COMPUTERS HAVING STORED THEREIN COMPUTER PROGRAMS AND/OR DATA FOR USE IN COMPUTERS
Electrical and Scientific Apparatus