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Patents > National tech categories : FR 6.4 or USPC 244/80 or None

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FR (3073) · None (2492) · US (1945) · GB (1409) · DE (837) · IT (166) · AT (150) · BE (113) · CH (104) · RU (85) · CA (80) · AU (56) · HU (54) · ES (42) · RO (38) · NZ (33) · NL (27) · SE (26) · NO (25) · DZ (23)
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None (10592) · 1 (29) · Curtiss Aeroplane (10) · Sperry Gyroscope Company (10) · Curtiss Aeroplane and Motor Corporation (7) · Westinghouse Electric & Manufacturing Company (5) · Moteurs Salmson (4) · Siemens-Schuckert Werke GmbH (4) · Établissements de Dion-Bouton (3) · Goodyear Tire and Rubber Company (3) · Société Anonyme des Établissements Nieuport (3) · Tarbox Safety Aircraft Company (3) · Varioplane Company (3) · Curtiss Aeroplane & Motor Corporation (3)
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Cites these patents:
None (10682) · 1 (8) · 0 (5) · Patent FR-1911-438363 (3) · USPC 244/87 (3) · Patent GB-1908-17150 (3) · CPC B64B1/00 (3) · Patent FR-1909-411204 (2) · Patent GB-1909-8118 (2) · Patent GB-1912-15735 (2) · Patent GB-1912-5966 (2) · Patent GB-1909-3202 (2) · Patent GB-1901-346 (2) · Patent GB-1913-5223 (2) · USPC 244/48 (2) · Patent GB-1914-23502 (2)
Citations from after 1930:
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