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Current hierarchy for structures (121)
Hierarchy Drop down navigation for Type Search Exclude Subordinates
structures (121) structures (121) exclude
  boats and ships (36) structures (121) -> boats and ships (36)  
  bridges (35) structures (121) -> bridges (35) exclude
    drawbridges (1) structures (121) -> bridges (35) -> drawbridges (1)  
    truss bridges (7) structures (121) -> bridges (35) -> truss bridges (7)  
  drying sheds (1) structures (121) -> drying sheds (1)  
  nautical (34) structures (121) -> nautical (34) exclude
    dry docks (27) structures (121) -> nautical (34) -> dry docks (27) exclude
      blocks and wedges (5) structures (121) -> nautical (34) -> dry docks (27) -> blocks and wedges (5)  
  roofs (10) structures (121) -> roofs (10)  
  tunnels and arches (1) structures (121) -> tunnels and arches (1)  
  vaults and privies (1) structures (121) -> vaults and privies (1)  
 
Full Hierarchy | agricultural (3,345) | armaments (139) | combination tools (626) | construction machines (91) | electrical devices (1,398) | gauges (109) | handheld power tools (825)
hardware (241) | household tools (118) | household (2,278) | industrial machines (1,943) | industrial tanks (5) | industrial tools (1,257) | knives and cutters (178) | layout tools (2,665)
manufacturing (334) | material handling (393) | metalworking machines (15,265) | metalworking tools (2,082) | musical instruments (57) | photographic apparatus (480) | pliers (740) | potters tools (3)
propulsion and energy (6,225) | punches (50) | rules (497) | screwdrivers (592) | specialty machines (2,904) | specialty tools (1,763) | stoneworking (143) | structures (121)
tool making (466) | trade specific (5,956) | transportation (1,076) | water distribution systems (232) | woodworking machines (15,645) | woodworking tools (4,185) | work holding (1,651) | wrenches (6,031)

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