FR542791A - Hélicoptère - Google Patents

Hélicoptère

Info

Publication number
FR542791A
FR542791A FR542791DA FR542791A FR 542791 A FR542791 A FR 542791A FR 542791D A FR542791D A FR 542791DA FR 542791 A FR542791 A FR 542791A
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
Wenzel Haupt
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 FR542791A publication Critical patent/FR542791A/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
    • B64C27/20—Rotorcraft characterised by having shrouded rotors, e.g. flying platforms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
FR542791D 1920-10-08 1921-10-03 Hélicoptère Expired FR542791A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US542791XA 1920-10-08 1920-10-08

Publications (1)

Publication Number Publication Date
FR542791A true FR542791A (fr) 1922-08-21

Family

ID=21989951

Family Applications (1)

Application Number Title Priority Date Filing Date
FR542791D Expired FR542791A (fr) 1920-10-08 1921-10-03 Hélicoptère

Country Status (1)

Country Link
FR (1) FR542791A (fr)

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