FR25725E - Hélice à récupération - Google Patents

Hélice à récupération

Info

Publication number
FR25725E
FR25725E FR25725DA FR25725E FR 25725 E FR25725 E FR 25725E FR 25725D A FR25725D A FR 25725DA FR 25725 E FR25725 E FR 25725E
Authority
FR
France
Prior art keywords
propeller
recovery
recovery propeller
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
Etienne Oehmichen
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 FR25725E publication Critical patent/FR25725E/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/16—Blades
    • B64C11/20—Constructional features

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
FR25725D 1921-12-06 1921-12-06 Hélice à récupération Expired FR25725E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR25725T 1921-12-06

Publications (1)

Publication Number Publication Date
FR25725E true FR25725E (fr) 1923-05-17

Family

ID=8664215

Family Applications (1)

Application Number Title Priority Date Filing Date
FR25725D Expired FR25725E (fr) 1921-12-06 1921-12-06 Hélice à récupération

Country Status (1)

Country Link
FR (1) FR25725E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422388A (en) * 1943-04-05 1947-06-17 Arthur W Billings Airplane propeller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422388A (en) * 1943-04-05 1947-06-17 Arthur W Billings Airplane propeller

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