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Patents > Publication date: 1919 & Number of diagram pages: 1 & Number of figures: 4

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airplane (11) · construction (7) · frame (6) · subsystem (5) · propellers (4) · Wings (4) · Biplane (4) · LTA (3) · landing (2) · stability (2) · Design (2) · automatic stability (2) · fuselage (2) · hydroaeroplane (2)
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