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Auxiliary helicopter rotor
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Patent number 4,828,458
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Issue date May 9, 1989
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Costruzioni Aeronautiche Giovanni Agusta S.p.A.
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Emilio Pariani
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Helicopter rotor
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Patent number 4,808,075
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Issue date Feb 28, 1989
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Costruzioni Aeronautiche Giovanni Agusta S.p.A.
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Emilio Pariani
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Main helicopter rotor
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Patent number 4,778,340
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Issue date Oct 18, 1988
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Costruzioni Aeronautiche Giovanni Augusta S.p.A.
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Emilio Pariani
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Helicopter rotor
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Patent number 4,588,356
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Issue date May 13, 1986
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Costruzioni Aeronautiche Giovanni Agusta S.p.A.
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Emilio Pariani
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Helicopter rotor
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Patent number 4,549,851
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Issue date Oct 29, 1985
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Costruzioni Aeronautiche Giovanni Agusta S.p.A.
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Emilio Pariani
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Helicopter rotor
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Patent number 4,540,340
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Issue date Sep 10, 1985
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Costruzioni Aeronautiche Giovanii Agusta S.p.A.
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Emilio Pariani
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Countertorque rotor for helicopters
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Patent number 4,466,773
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Issue date Aug 21, 1984
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Costruzioni Aeronautiche Giovanni Agusta S.p.A.
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Emilio Pariani
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Composite hub for a helicopter rotor
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Patent number 4,425,082
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Issue date Jan 10, 1984
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Costruzioni Aeronautiche Giovanni Agusta S.p.A.
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Fiorenzo Mussi
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Method of making helicopter blade spars
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Patent number 4,407,688
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Issue date Oct 4, 1983
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Costruzioni Aeronautiche Giovanni Agusta S.p.A.
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Fiorenzo Mussi
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL