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DIFF Subgroup
F01D 5/18

Hollow blades, ; Heating, heat-insulating or cooling means on blades

Introduced: September 1968

Title

Titles differ between systems:

IPC: Hollow blades; Heating, heat-insulating, or cooling means on blades

CPC: Hollow blades, ; Heating, heat-insulating or cooling means on blades

Full Title

Full titles differ between systems:

IPC:

Blades; Blade-carrying members; Heating, heat-insulating, cooling, or antivibration means on the blades or the members > Blades > Form or construction > Hollow blades; Heating, heat-insulating, or cooling means on blades

CPC:

Blades; Blade-carrying members (nozzle boxes F01D9/02); Heating, heat-insulating, cooling or antivibration means on the blades or the members > Blades (; blade roots F01D5/30; rotors with blades adjustable in operation F01D7/00; stator blades F01D9/02) > Form or construction (selecting particular materials, measures against erosion or corrosion F01D5/28) > Hollow blades, ; Heating, heat-insulating or cooling means on blades

Of 5 combined children, 0 exist in both systems.

5 codes are CPC-only extensions.

Child Classifications

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