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  • E04H12/00
    		•  Towers; Masts or poles; Chimney stacks; Watertowers; Methods of erecting such structures (cooling towers E04H 5/12; derricks for oil drilling E21B 15/00) [1, 6, 2006.01] HB CC 2E140
  • E04H12/00@A
    		•  Structures HB CC 2E140
  • E04H12/00@B
    		•  .Windproof or anti-vibration structures (E 04 H 9/14 G takes precedence) HB CC 2E140
  • E04H12/00@C
    		•  Accessories HB CC 2E140
  • E04H12/00@D
    		•  .Protection panels HB CC 2E140
  • E04H12/00@E
    		•  ..for preventing posting bills (also see G 09 F 7/00 P.) HB CC 2E140
  • E04H12/00@F
    		•  ..for preventing corrosion HB CC 2E140
  • E04H12/00@G
    		•  .Arrangements for preventing climbing tower, e.g. for operators HB CC 2E140
  • E04H12/00@H
    		•  ..for plants and animals (articles related to power feeding, e.g. electric insulators H 02 G 7/00) HB CC 2E140
  • E04H12/00@J
    		•  .Head covers HB CC 2E140
  • E04H12/00@Z
    		•  Others HB CC 2E140
  • E04H12/02
    		•  . Structures made of specified materials [1, 2006.01] HB CC 2E140
  • E04H12/04
    		•  ..of wood HB CC 2E140
  • E04H12/06
    		•  ...Truss-like structures HB CC 2E140
  • E04H12/08
    		•  ..of metal HB CC 2E140
  • E04H12/10
    		•  ...Truss-like structures HB CC 2E140
  • E04H12/10@A
    		•  characterised by structures HB CC 2E140
  • E04H12/10@B
    		•  characterised by construction, e.g. methods for lifting towers HB CC 2E140
  • E04H12/10@Z
    		•  Others HB CC 2E140
  • E04H12/12
    		•  ..of concrete or other stone-like material, with or without internal or external reinforcement, e.g. with metal coverings, with permanent form elements HB CC 2E140
  • E04H12/14
    		•  ...Truss-like structures HB CC 2E140
  • E04H12/16
    		•  .Prestressed structures HB CC 2E140
  • E04H12/18
    		•  . movable or with movable sections, e.g. rotatable or telescopic [1, 2006.01] HB CC 2E140
  • E04H12/18@A
    		•  Rotatable type, e.g. supports with atoscillating bottoms of poles, portable super reclining units HB CC 2E140
  • E04H12/18@B
    		•  extending and contracting HB CC 2E140
  • E04H12/18@C
    		•  .telescopically extending and contracting HB CC 2E140
  • E04H12/18@Z
    		•  Others HB CC 2E140
  • E04H12/20
    		•  . Side-supporting means therefor, e.g. using guy ropes or struts [1, 2006.01] HB CC 2E140
  • E04H12/20@A
    		•  using of struts HB CC 2E140
  • E04H12/20@B
    		•  using of struts, e.g. strut blocks, strut rods, strut retainers HB CC 2E140
  • E04H12/20@C
    		•  .Strut mounts HB CC 2E140
  • E04H12/20@D
    		•  .Strut guards, e.g. covers HB CC 2E140
  • E04H12/20@Z
    		•  Others HB CC 2E140
  • E04H12/22
    		•  .Sockets or holders for poles or posts HB CC 2E140
  • E04H12/24
    		•  .Cross-arms HB CC 2E140
  • E04H12/26
    		•  . Winding towers for mines [1, 2006.01] HB CC 2E140
  • E04H12/28
    		•  . Chimney stacks, e.g. free-standing, or similar ducts(chimneys as part of buildings E04F 17/02) [1, 2006.01] HB CC 2E140
  • E04H12/28@A
    		•  Self-standing chimney stacks, e.g. reinforcing flues or air ducts, made of precast concrete, remodelling methods HB CC 2E140
  • E04H12/28@B
    		•  .characterised by construction HB CC 2E140
  • E04H12/28@C
    		•  Tower supported chimney stacks HB CC 2E140
  • E04H12/28@D
    		•  .characterised by construction HB CC 2E140
  • E04H12/28@E
    		•  Chimney aggregates HB CC 2E140
  • E04H12/28@Z
    		•  Others HB CC 2E140
  • E04H12/30
    		•  . Water-towers [1, 2006.01] HB CC 2E140
  • E04H12/32
    		•  . Flagpoles [1, 2006.01] HB CC 2E140
  • E04H12/34
    		•  .Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like [6] HB CC 2E140
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