Template:B64C2700 tree

(note about this partially completed tree; the number of dots equals the number of needed * To do Patent subclass tree of apparently obsolete class B264C 2700:

• CPC B64C2700/62: Codes corresponding to the former IdT classification of class 62
  • CPC B64C2700/6201: Airplanes, helicopters, and autogyros
    • CPC B64C2700/6202: Characteristics not limited to an aircraft type
      • CPC B64C2700/6204 Materials
      • CPC B64C2700/6205 Protection means, e.g. against rust, water, fire
      • CPC B64C2700/6207 Stabilisation
        • CPC B64C2700/6208 Longitudinal and transversal stability
          • CPC B64C2700/6209 automatically controlled
            • CPC B64C2700/6211 with movable weight not acting as pendulum
            • CPC B64C2700/6212 with weight acting as pendulum
              • CPC B64C2700/6214 with parts of the aircraft acting as pendulum
              • CPC B64C2700/6215 with fluid acting as pendulum
            • CPC B64C2700/6216 by gyroscopical effect (also in combination with pendulum)
            • CPC B64C2700/6218 by other pulse power source, e.g. aerodynamical effect, propellers
              • CPC B64C2700/6219 by auxiliary fixed or movable surfaces or other special devices, or surfaces acting as parachutes
          • CPC B64C2700/6221 manually controlled
            • CPC B64C2700/6222 with movable weight not acting as pendulum
            • CPC B64C2700/6223 with weight acting as pendulum
            • CPC B64C2700/6225 by gyroscopical effect (also in combination with pendulum)
            • CPC B64C2700/6226 by other pulse power source; e.g. aerodynamical effect, propeller
              • CPC B64C2700/6228 by auxiliary planes or parachutes
          • CPC B64C2700/6229 Special devices to stabilise or to compensate a helicopter rotor by other means than counter rotating rotor
          • CPC B64C2700/623 Special devices to stabilise or to compensate a gyroplane pivoting torque
    • CPC B64C2700/6232 Airplanes with fixed or movable wings
      • CPC B64C2700/6233 Design, structure or mounting of wings
        • CPC B64C2700/6235 Guy-wires assemblies; Connections between wings and fuselage
        • CPC B64C2700/6236 Honeycomb stiffeners
        • CPC B64C2700/6238 Pressure equalising devices between the inside of the wing and the atmosphere
        • CPC B64C2700/6239 Ful wing structures
        • CPC B64C2700/624 Wings or parts thereof movable during flight
          • CPC B64C2700/6242 adjustable about several axes
      • CPC B64C2700/6243 Control systems
        • CPC B64C2700/6245 by warping of wings tips
        • CPC B64C2700/6246 by auxiliary surfaces at the wings tips
        • CPC B64C2700/6247 by auxiliary surfaces outside the wings tips
        • CPC B64C2700/6249 by propellers
        • CPC B64C2700/625 by jet flaps
        • CPC B64C2700/6252 Control systems assemblies
          • CPC B64C2700/6253 Feedback compensation devices
• CPC B64C2700/6254 ・・・・・Control systems or transmitting systems for actuating control surfaces
• CPC B64C2700/6256 ・・・・・・Control devices for fins or rudders
• CPC B64C2700/6257 ・・・・・・・by hydraulical, pneumatical or electrical means
• CPC B64C2700/6259 ・・・・・・Control devices for feed-back compensating and guiding surfaces
• CPC B64C2700/626 ・・・・・・・by hydraulical, pneumatical or electrical means
• CPC B64C2700/6261 ・・・・・・Transmission systems
• CPC B64C2700/6263 ・・・・・・・Servo actuators; Auxiliary motors
• CPC B64C2700/6264 ・・・・・・Vibrations suppressing devices
• CPC B64C2700/6266 ・・・・・・Safety devices
• CPC B64C2700/6267 ・・・・・Control devices for a special position of the flying aircraft or a special position of the pilot
• CPC B64C2700/6269 ・・・・・Control from outside the aircraft
  • • • CPC B64C2700/627: Influencing airflow over aircraft surfaces
        • CPC B64C2700/6271: by fluid flow around the aircraft
        • CPC B64C2700/6273: lift being provided by static devices, e.g. balloons
        • CPC B64C2700/6274: by other means, e.g. propellers, rotors, air jets
    • CPC B64C2700/6276: Rotorcraft
      • CPC B64C2700/6277: Rotorcraft with driven or windmilling propellers
        • CPC B64C2700/6278: Features common for any type of rotorcraft
          • CPC B64C2700/628: Devices for the adjustment of the blades; Folding blades
        • CPC B64C2700/6281: Helicopters
          • CPC B64C2700/6283: Rotor construction
            • CPC B64C2700/6284: Blades control devices
              • CPC B64C2700/6285: Drag reducing devices for an inoperative rotor
            • CPC B64C2700/6287: Rotor drives
              • CPC B64C2700/6288: Hydraulic, electric or man powered rotorcrafts
            • CPC B64C2700/629: Rotors which can be used as propulsion means
            • CPC B64C2700/6291 Rotors stowable in the wings
          • CPC B64C2700/6292 Control means using other devices than the rotor
          • CPC B64C2700/6294 Construction parts, e.g. frames; Balancing; Flight control; Brakes
    • CPC B64C2700/6295 Aircraft specially adapted for special uses
      • CPC B64C2700/6297 for military uses
    • CPC B64C2700/6298 Gliders