Drilldown: Patents

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Patents > Year granted: 1910 - 1919 & Number of diagram pages: 3-4 & Number of figures: 13-15

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Inventors:
De Bert Hartley (3) · None (2)
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None (4) · De Bert Hartley (3)
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Tech fields:
None (14) · airplane (8) · stability (8) · propulsion (3) · propeller (3) · LTA (3) · parachutes (2) · navigation (2) · wheels (2) · connections (2) · marine (2) · design (2) · rudder (2) · frame (2) · ornithopter (2) · HTA (2)
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