Drilldown: Patents

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Patents > Year granted: 1910 - 1919 & Office : BE or NL or NO or UN or None & Inventor country : BE or NL or SE

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airplane (32) · propellers (20) · hybrid (13) · LTA (12) · propulsion (7) · design (6) · instrument (5) · Construction (5) · wings (4) · Frame (4) · stability (4) · landing (3) · subsystem (3) · aerodynamics (3)
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Showing below up to 56 results in range #1 to #56.

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