Drilldown: Patents

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Patents > Grant date: 1920 - 1929 & Number of text pages: 4-8 & Number of claims: 7-10

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airplane (11) · None (6) · propellers (5) · design (5) · propeller (4) · wings (4) · biplane (3) · whole (3) · stability (3) · propulsion (3) · construction (3) · airfoil (3) · frame (3) · fuselage (3)
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CPCs:
CPC B64C3/00 (3) · CPC B64C35/00 (3) · CPC B64C2700/6295 (2) · CPC B64C2700/6235 (2) · CPC B64C2700/6212 (2) · CPC B64C11/36 (2) · CPC B64C39/00 (2) · CPC B64C17/00 (2)
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