FR431571A - Hélicoptère - Google Patents

Hélicoptère

Info

Publication number
FR431571A
FR431571A FR431571A FR431571DA FR431571A FR 431571 A FR431571 A FR 431571A FR 431571 A FR431571 A FR 431571A FR 431571D A FR431571D A FR 431571DA FR 431571 A FR431571 A FR 431571A
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
FR431571A
Other languages
English (en)
Inventor
Henry Bertram Lister
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Application granted granted Critical
Publication of FR431571A publication Critical patent/FR431571A/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
    • B64C27/08—Helicopters with two or more rotors
    • B64C27/10—Helicopters with two or more rotors arranged coaxially

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
FR431571A 1911-05-06 1911-05-06 Hélicoptère Expired FR431571A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR431571T 1911-05-06

Publications (1)

Publication Number Publication Date
FR431571A true FR431571A (fr) 1911-11-14

Family

ID=1473723

Family Applications (1)

Application Number Title Priority Date Filing Date
FR431571A Expired FR431571A (fr) 1911-05-06 1911-05-06 Hélicoptère

Country Status (1)

Country Link
FR (1) FR431571A (fr)

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