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Patents > Year filed: 1909 & Office : BE or GB or HU & IPCs: None & Number of claims: 2-4

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Airplane (14) · Design (13) · propulsion (9) · LTA (9) · Whole (9) · Airship (9) · Lift (7) · subsystem (6) · Stability (5) · Propellers (5) · Balloons (4) · Control (4) · rudder (4) · Frame (4) · Construction (4) · Sustentation (3) · steering (3) · Wings (3) · ascension (3)
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Showing below up to 33 results in range #1 to #33.

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