Classification
500 - Natural sciences & mathematics
13
620 - Engineering & allied operations
006 - Special computer methods
6
745 - Decorative arts
5
005 - Computer programming, programs & data
4
384 - Communications; telecommunication
4
686 - Printing & related activities
2
004 - Data processing & computer science
1
658 - General management
1
741 - Drawing & drawings
1