Drilldown: Patents

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Patents > Grant date: 1913 & Number of text pages: 4-5 & Number of claims: 8-20

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None (3)
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Tech fields:
airplane (18) · stability (13) · design (11) · frame (9) · None (8) · rudder (7) · wings (7) · control (6) · propellers (6) · construction (5) · propeller (5) · wheels (5) · landing (4) · navigation (4) · safety (4)
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National tech categories:
None (12) · HU V/h (5) · USPC 244/80 (4) · FR 6.4 (3) · USPC 244/233 (3) · USPC 244/221 (2) · USPC 244/25 (2)
CPCs:
None (8) · CPC B64C17/00 (8) · CPC B64C13/00 (4) · CPC B64C23/005 (3) · CPC B64B1/00 (2) · CPC B64C3/385 (2)
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