FR571957A - Hélicoptère - Google Patents

Hélicoptère

Info

Publication number
FR571957A
FR571957A FR571957DA FR571957A FR 571957 A FR571957 A FR 571957A FR 571957D A FR571957D A FR 571957DA FR 571957 A FR571957 A FR 571957A
Authority
FR
France
Prior art keywords
helicopter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
Inventor
Thomas Osborne Perry
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR571957A publication Critical patent/FR571957A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B64C27/12—Rotor drives

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
FR571957D 1922-08-21 1923-08-21 Hélicoptère Expired FR571957A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US571957XA 1922-08-21 1922-08-21

Publications (1)

Publication Number Publication Date
FR571957A true FR571957A (fr) 1924-05-27

Family

ID=22009079

Family Applications (1)

Application Number Title Priority Date Filing Date
FR571957D Expired FR571957A (fr) 1922-08-21 1923-08-21 Hélicoptère

Country Status (1)

Country Link
FR (1) FR571957A (fr)

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