600 - Technology (Applied sciences)

   601 - Philosophy and theory
   602 - Miscellany
   603 - Dictionaries and encyclopedias
   604 - Special topics
   605 - Serial publications
   606 - Organizations
   607 - Education, research, related topics
   608 - Invention and patents
   609 - Historical, geographic, persons treatment

610 - Medical Sciences, medicine

   611 - Human anatomy, cytology, histology
   612 - Human physiology
   613 - Promotion of health
   614 - Incidence and prevention of disease
   615 - Pharmacology and therapeutics
   616 - Diseases
   617 - Surgery and related medical specialties
   618 - Gynecology and other related medical specialties
   619 - Experimental medicine

620 - Engineering and allied operations

   621 - Applied physics
   622 - Mining and related operations
   623 - Military and nautical engineering
   624 - Civil engineering
   625 - Engineering of railroads and roads
   626 - Unassigned
   627 - Hydraulic engineering
   628 - Sanitary and municipal engineering
   629 - Other branches of engineering

630 - Agriculture and related technologies

   631 - Techniques, equipment, materials
   632 - Plant injuries, diseases, pests
   633 - Field and plantation crops
   634 - Orchards, fruits, forestry
   635 - Garden crops (Horticulture)
   636 - Animal husbandry
   637 - Processing dairy and related products
   638 - Insect culture
   639 - Hunting, fishing, conservation

640 - Home economics and family living

   641 - Food and drink
   642 - Meals and table service
   643 - Housing and household equipment
   644 - Household utilities
   645 - Household furnishings
   646 - Sewing, clothing, personal living
   647 - Management of public households
   648 - Housekeeping
   649 - Child rearing and home care of persons

650 - Management and auxiliary services

   651 - Office services
   652 - Processes of written communication
   653 - Shorthand
   654 - Unassigned
   655 - Unassigned
   656 - Unassigned
   657 - Accounting
   658 - General management
   659 - Advertising and public relations

660 - Chemical engineering

   661 - Industrial chemicals technology
   662 - Explosives, fuels, related products
   663 - Beverage technology
   664 - Food technology
   665 - Industrial oils, fats, waxes, gases
   666 - Ceramic and allied technologies
   667 - Cleaning, color, coating technologies
   668 - Technology of other organic products
   669 - Metallurgy

670 - Manufacturing

   671 - Metalworking and metal products
   672 - Iron, steel, other iron alloys
   673 - Nonferrous metals
   674 - Lumber processing, wood products, cork
   675 - Leather and fur processing
   676 - Pulp and paper technology
   677 - Textiles
   678 - Elastomers and elastomer products
   679 - Other products of specific materials

680 - Manufacture for specific uses

   681 - Precision instruments and other devices
   682 - Small forge work (Blacksmithing)
   683 - Hardware and household appliances
   684 - Furnishings and home workshops
   685 - Leather, fur goods, related products
   686 - Printing and related activities
   687 - Clothing accessories
   688 - Other final products and packaging
   689 - Unassigned

690 - Buildings

   691 - Building materials
   692 - Auxiliary construction practices
   693 - Specific materials and purposes
   694 - Wood construction, carpentry
   695 - Roof covering
   696 - Utilities
   697 - Heating, ventilating, air-conditioning
   698 - Detail finishing
   699 - Unassigned

09.20.2005