Drilldown: Patents

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Patents > Publication date: 1918 & Number of diagram pages: 1

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None (5) · Heinrich Bier (2) · Nicolaas Everhard Groeneveld Meyer (2) · Floris Albert van Heyst (2)
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Tech fields:
airplane (13) · frame (8) · construction (6) · propellers (5) · design (5) · instrument (5) · wings (4) · navigation (4) · military (4) · subsystem (4) · propulsion (3) · stability (3) · projectile (3) · airship (3) · control (3) · aerodynamics (3) · biplane (3)
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