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Patents > Year filed: 1906 & National tech categories : FR 6.2 or FR 6.4 & Number of text pages: 1-2

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Jules Collomb (3) · Désiré Sival (2)
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LTA (10) · airplane (8) · Propulsion (7) · stability (6) · helicopter (6) · None (3) · aerodynamics (3) · construction (3)
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