Technology

Technology
600 Technology
601 Philosophy & theory
602 Miscellany
603 Dictionaries & encyclopedias
604 Special topics
605 Serial publications
606 Organizations
607 Education, research & relate...
608 Inventions & patents
609 Historical, geographic & per...

Medicine & health
610 Medicine & health
611 Human anatomy, cytology & hi...
612 Human physiology
613 Personal health & safety
614 Incidence & prevention of di...
615 Pharmacology & therapeutics
616 Diseases
617 Surgery & related medical sp...
618 Gynecology, obstetrics, pedi...
619 [Unassigned]

Engineering
620 Engineering & allied operati...
621 Applied physics
622 Mining & related operations
623 Military & nautical engineer...
624 Civil engineering
625 Engineering of railroads & r...
626 [Unassigned]
627 Hydraulic engineering
628 Sanitary & municipal enginee...
629 Other branches of engineering

Agriculture
630 Agriculture & related techno...
631 Techniques, equipment & mate...
632 Plant injuries, diseases & p...
633 Field & plantation crops
634 Orchards, fruits & forestry
635 Garden crops (Horticulture)
636 Animal husbandry
637 Processing dairy & related p...
638 Insect culture
639 Hunting, fishing & conservat...

Home & family management
640 Home & family management
641 Food & drink
642 Meals & table service
643 Housing & household equipment
644 Household utilities
645 Household furnishings
646 Sewing, clothing & personal ...
647 Management of public househo...
648 Housekeeping
649 Child rearing & home care of...

Management & public relations
650 Management & auxiliary servi...
651 Office services
652 Processes of written communi...
653 Shorthand
654 [Unassigned]
655 [Unassigned]
656 [Unassigned]
657 Accounting
658 General management
659 Advertising & public relations

Chemical engineering
660 Chemical engineering
661 Industrial chemicals
662 Explosives, fuels & related ...
663 Beverage technology
664 Food technology
665 Industrial oils, fats, waxes...
666 Ceramic & allied technologies
667 Cleaning, color & coating te...
668 Technology of other organic ...
669 Metallurgy

Manufacturing
670 Manufacturing
671 Metalworking & primary metal...
672 Iron, steel & other iron all...
673 Nonferrous metals
674 Lumber processing, wood prod...
675 Leather & fur processing
676 Pulp & paper technology
677 Textiles
678 Elastomers & elastomer produ...
679 Other products of specific m...

Manufacture for specific uses
680 Manufacture for specific uses
681 Precision instruments & othe...
682 Small forge work (Blacksmith...
683 Hardware & household applian...
684 Furnishings & home workshops
685 Leather, fur goods & related...
686 Printing & related activities
687 Clothing & accessories
688 Other final products & packa...
689 [Unassigned]

Building & construction
690 Buildings
691 Building materials
692 Auxiliary construction pract...
693 Specific materials & purposes
694 Wood construction & carpentry
695 Roof covering
696 Utilities
697 Heating, ventilating & air-c...
698 Detail finishing
699 [Unassigned]

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