Drilldown: Patents

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Patents > Year filed: 1910 - 1919 & IPCs: IPC B64C33/02 & Number of text pages: 3-4

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Inventors:
Herbert Wiley Hetherington (2)
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Herbert Wiley Hetherington (2)
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Tech fields:
ornithopter (12) · flapping (10) · None (8) · wings (8) · design (6) · airplane (5) · hybrid (5) · construction (4) · frame (4) · HTA (4) · navigation (3) · propulsion (2) · Lift (2) · control (2) · whole (2) · chassis (2) · propellers (2) · stability (2)
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