Drilldown: Patents

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Patents > Year granted: 1920 - 1929 & Number of text pages: 3 & Number of figures: 6

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None (6) · airplane (6) · propellers (4) · whole (4) · LTA (3) · fuselage (3) · frame (3) · design (3) · construction (3) · motors (2) · piloting (2) · HTA (2) · triplane (2)
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