Dewey Decimal System/Technology

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Main Categories List

600 Technology (Applied sciences)
601 Philosophy & theory
602 Miscellany
603 Dictionaries & encyclopedias
604 Special topics
605 Serial publications
606 Organizations
607 Education, research, related topics
608 Invention & patents
609 Historical, areas, persons treatment
610 Medical sciences Medicine
611 Human anatomy, Human cytology,Human histology
612 Human physiology
613 Promotion of health
614 Incidence & prevention of disease
615 Pharmacology & theraputics
616 Diseases
617 Surgery & related medical specialities
618 Gynecology & other medical specialities
619 Experimental medicine
620 Engineering & allied operations
621 Applied physics
622 Mining & related operations
623 Military engineering & nautical engineering
624 Civil engineering
625 Engineering of railroads, roads
626
627 Hydraulic engineering
628 Sanitary engineering & municipal engineering
629 Other branches of engineering
630 Agriculture
631 Techniques, equipment, materials
632 Plant injuries, Plant diseases, Plant pests
633 Field & plantation crops
634 Orchards, fruits, forestry
635 Garden crops (Horticulture)
636 Animal husbandry
637 Processing dairy & related products
638 Insect culture
639 Hunting, fishing, conservation
640 Home economics & family living
641 Food & drink
642 Meals & table service
643 Housing & household equipment
644 Household utilities
645 Household furnishings
646 Sewing, clothing, personal living
647 Management of public households
648 Housekeeping
649 Child rearing & home care of sick
650 Management & auxiliary services
651 Office services
652 Processes of written communication
653 Shorthand
654
655
656
657 Accounting
658 General management
659 Advertising & public relations
660 Chemical engineering
661 Industrial chemicals technology
662 Explosives, fuels technology
663 Beverage technology
664 Food technology
665 Industrial oils, fats, waxes, gases
666 Ceramic & allied technologies
667 Cleaning, color, related technologies
668 Technology of other organic products
669 Metallurgy
670 Manufacturing
671 Metalworking & metal products
672 Iron, steel, other iron alloys
673 Nonferrous metals
674 Lumber processing, wood products, cork
675 Leather processing & fur processing
676 Pulp & paper technology
677 Textiles
678 Elastomers & elastomer products
679 Other products of specific materials
680 Manufacture for specific uses
681 Precision instruments & other devices
682 Small forge work (Blacksmithing)
683 Hardware & household appliances
684 Furnishings & home workshops
685 Leather, fur, related products
686 Printing & related activities
687 Clothing
688 Other final products & packaging
689
690 Buildings
691 Building materials
692 Auxiliary construction practices
693 Specific materials & purposes
694 Wood construction (Carpentry)
695 Roof covering
696 Utilities
697 Heating, ventilating, air-conditioning
698 Detail finishing
699