FR711996A - Improvements to air navigation devices - Google Patents

Improvements to air navigation devices

Info

Publication number
FR711996A
FR711996A FR711996DA FR711996A FR 711996 A FR711996 A FR 711996A FR 711996D A FR711996D A FR 711996DA FR 711996 A FR711996 A FR 711996A
Authority
FR
France
Prior art keywords
navigation devices
air navigation
air
devices
navigation
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
Jean Leonce Adolphe Rehbock
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 FR711996A publication Critical patent/FR711996A/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
    • B64C27/12—Rotor drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C31/00—Aircraft intended to be sustained without power plant; Powered hang-glider-type aircraft; Microlight-type aircraft
    • B64C31/04—Man-powered aircraft
FR711996D 1930-06-05 1930-06-05 Improvements to air navigation devices Expired FR711996A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR711996T 1930-06-05

Publications (1)

Publication Number Publication Date
FR711996A true FR711996A (en) 1931-09-22

Family

ID=9077985

Family Applications (1)

Application Number Title Priority Date Filing Date
FR711996D Expired FR711996A (en) 1930-06-05 1930-06-05 Improvements to air navigation devices

Country Status (1)

Country Link
FR (1) FR711996A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2628063A1 (en) * 1988-03-03 1989-09-08 Mouroux Louis Human powered helicopter - has upper rotor powered directly by hand crank assisted by foot crank pulley and cables also driving lower rotor in opposite direction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2628063A1 (en) * 1988-03-03 1989-09-08 Mouroux Louis Human powered helicopter - has upper rotor powered directly by hand crank assisted by foot crank pulley and cables also driving lower rotor in opposite direction

Similar Documents

Publication Publication Date Title
FR720436A (en) Improvements to gyroscopes
FR705155A (en) Improvements to air navigation devices
FR715101A (en) Improvements to ventilation devices
FR727451A (en) Improvements to filtration devices
FR711996A (en) Improvements to air navigation devices
FR717005A (en) Improvements made to dust extractors
FR706796A (en) Advanced training in air navigation devices
FR706783A (en) Improvements to ventilation devices
FR724497A (en) Improvements to indicating devices
FR40039E (en) Improvements to air navigation devices
FR676480A (en) Improvements to air navigation devices
FR709765A (en) Improvements to vehicle indicating devices
FR709804A (en) Improvements to measuring devices
FR688070A (en) Improvements to gavanoplasty devices
FR688340A (en) Advanced navigation devices
FR623957A (en) Improvements to air navigation devices
FR717172A (en) Improvements to warning devices
FR729476A (en) Improvements to flying devices
FR707832A (en) Improvements to refrigeration devices
FR689996A (en) Improvements to air navigation devices
FR36392E (en) Improvements to advertising devices
FR681473A (en) Improvements to advertising devices
FR688215A (en) Improvements to filing devices
FR711571A (en) Improvements to projection devices
FR39408E (en) Improvements to projection devices