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FR2448127A1
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Object presence indicator to assist blind person - employs optical system on carriage with detectors sensing reflected light
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FR2379430A2
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Aircraft wing with variable profile - uses aircraft fuel pumped into bellows to change profile during flight
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FR2374208A1
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Aircraft wing with variable aerodynamic profile - has flexible wing surface controlled by fuel under pressure pumped between tanks
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FR2397540A1
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Wind driven power generator - has pivoting radial blades round vertical axis and also collects solar energy
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OA5154A
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Hydraulic turbine with motor current
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FR2290585A1
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Blade with variable profile for windmill rotor - has profile controlled by wind force and rotor speed
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FR2570766A1
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Rotary hydraulic motor
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OA4745A
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Aircraft piloting equipment for disabled lower limbs.
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FR2277723A1
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Aeroplane with high normal speed to landing speed ratio - has compression springs in wings with multiple segment upper surfaces
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FR2262256A1
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Oil burner silencer and economiser - fits over burner tip by pressing or screwing and has bell mouth
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