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Patents > Supplementary to patent: None & CPCs: CPC B64C2700/6281 & Number of figures: 1-6

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Inventors:
None (2) · Désiré Sival (2)
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Désiré Sival (2)
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Tech fields:
helicopter (19) · None (8) · propulsion (6) · propellers (5) · Airplane (4) · hybrid (4) · stability (4) · Ascension (4) · propeller (3) · whole (2) · Wheels (2) · construction (2) · flapping (2) · Frame (2) · HTA (2) · design (2)
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