FR691364A - Security plane - Google Patents

Security plane

Info

Publication number
FR691364A
FR691364A FR691364DA FR691364A FR 691364 A FR691364 A FR 691364A FR 691364D A FR691364D A FR 691364DA FR 691364 A FR691364 A FR 691364A
Authority
FR
France
Prior art keywords
security plane
security
plane
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
French (fr)
Inventor
Gustave-Henri Oudet
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 FR691364A publication Critical patent/FR691364A/en
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)
FR691364D 1930-01-17 1930-01-17 Security plane Expired FR691364A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR691364T 1930-01-17

Publications (1)

Publication Number Publication Date
FR691364A true FR691364A (en) 1930-10-21

Family

ID=9033240

Family Applications (1)

Application Number Title Priority Date Filing Date
FR691364D Expired FR691364A (en) 1930-01-17 1930-01-17 Security plane

Country Status (1)

Country Link
FR (1) FR691364A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103332294A (en) * 2013-07-03 2013-10-02 马帅 Helicopter rotor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103332294A (en) * 2013-07-03 2013-10-02 马帅 Helicopter rotor
CN103332294B (en) * 2013-07-03 2016-04-20 济南弘毅格致科贸有限公司 A kind of lifting airscrew

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