600s

600 Technology

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

610 Medicine & health

  • 611 Human anatomy, cytology & histology
  • 612 Human physiology
  • 613 Personal health & safety
  • 614 Incidence & prevention of disease
  • 615 Pharmacology & therapeutics
  • 616 Diseases
  • 617 Surgery & related medical specialties
  • 618 Gynecology, obstetrics, pediatrics & geriatrics
  • 619 [Unassigned]

620 Engineering & allied operations

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

630 Agriculture & related technologies

  • 631 Techniques, equipment & materials
  • 632 Plant injuries, diseases & 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 & family management

  • 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 persons

650 Management & public relations

  • 651 Office services
  • 652 Processes of written communication
  • 653 Shorthand
  • 654 [Unassigned]
  • 655 [Unassigned]
  • 656 [Unassigned]
  • 657 Accounting
  • 658 General management
  • 659 Advertising & public relations

660 Chemical engineering

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

670 Manufacturing

  • 671 Metalworking & primary metal products
  • 672 Iron, steel & other iron alloys
  • 673 Nonferrous metals
  • 674 Lumber processing, wood products & cork
  • 675 Leather & 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 goods & related products
  • 686 Printing & related activities
  • 687 Clothing & accessories
  • 688 Other final products & packaging
  • 689 [Unassigned]

690 Building & construction

  • 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 [Unassigned]
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