CPC B64C27/32

CPC B64C27/32

Nearby classification tree:

• CPC B64C27/00 Rotorcraft; Rotors peculiar thereto (alighting gear CPC B64C25/00)
  • CPC B64C27/001
  • CPC B64C27/20 Rotorcraft characterised by having shrouded rotors, e.g. flying platforms
  • CPC B64C27/32 Rotors (features common to rotors and propellers B64C11/00)
    • CPC B64C27/46 Blades
      • CPC B64C27/473 Constructional features (B64C27/463 takes precedence)
        • CPC B64C27/48 Root attachment to rotor head
  • CPC B64C27/54 Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement

Patents in category CPC B64C27/32

• Patent FR-1909-401649 (English title: airplane, Inventors: Henri Mun, Filing date: 1909-04-03)
• Patent GB-1910-22038 (English title: Improvements with revolving planes applicable to aircraft, Inventors: Oliver Charles Bouffler, Filing date: 1910-09-22)
• Patent GB-1911-22789 (English title: Helicopter, Inventors: Albert Valentine, Filing date: 1911-10-16)
• Patent GB-1911-29395 (Inventors: Emile Lallouette, Filing date: 1911-12-30)
• Patent GB-1912-13883 (Inventors: Gustav Mees, Filing date: 1912-06-13)
• Patent GB-1912-14736 (English title: Improvements in Driving and Sustaining Surfaces applicable to Navigation, in Air and Water, Inventors: Antoine-Padoue Filippi, Supplementary to patent: Patent FR-1911-442628, Filing date: 1912-06-24)
• Patent FR-1912-435971.16649 (English title: Improvements in propellers and in lift surfaces of airplanes, Inventors: Pierre Le Goaziou, Supplementary to patent: Patent FR-1911-435971, Filing date: 1912-10-28)
• Patent GB-1913-27698 (English title: Improvements to aeroplane propellers, Inventors: Edgar Lee Laur, Filing date: 1912-12-02)
• Patent FR-1916-502520.22245 (English title: Rotary wing aircraft, Inventors: Alexis Beurrier • Édouard-Jean Bigourdan • Louis Lacoin, Supplementary to patent: Patent FR-1915-502520, Filing date: 1916-11-02)

References

Enclosing categories	CPC B64C27/00
Subcategories	CPC B64C27/46
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