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Patents > National tech categories : DE 77h or USPC 244/22 or None & Family year: 1900 - 1999

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Inventor country:
None (1587) · US (1438) · FR (1116) · GB (1112) · DE (482) · IT (91) · AT (76) · CH (60) · CA (57) · BE (50) · RU (35) · HU (30) · AU (29) · NO (20) · SE (19) · ES (18) · RO (16) · NZ (15) · IE (14) · NL (13)
Applicant firm:
None (5904) · Curtiss Aeroplane (57) · Blackburn Aeroplane and Motor Co. (19) · Vickers (18) · British and Colonial Aeroplane Co. (11) · Dornier Metallbauten (9) · Société des Avions Louis Bréguet (9) · Sperry Gyroscope Company (9) · Établissements de Dion-Bouton (8) · Société anonyme Astra AB (8) · Sopwith Aviation Company Limited (6) · Curtiss Aeroplane and Motor Corporation (6) · Société Anonyme des Établissements Nieuport (6) · Tarbox Safety Aircraft Company (6) · Varioplane Company (6) · Westinghouse Electric & Manufacturing Company (6)
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Assigned to:
None (6200) · Sperry Gyroscope Company (8) · 1 (5) · Westinghouse Electric & Manufacturing Company (4) · Moteurs Salmson (4) · Curtiss Aeroplane (3) · Varioplane Company (3) · Goodyear Tire and Rubber Company (3) · Curtiss Aeroplane and Motor Corporation (3) · Westinghouse Air Spring Company (2) · Société Anonyme des Établissements Nieuport (2) · Curtiss Aeroplane & Motor Corporation (2) · John A. Roebling's Sons (2)
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Cites these patents:
None (6228) · 1 (3) · Patent GB-1901-346 (2) · Patent GB-1912-5966 (2) · Patent GB-1913-5223 (2) · Patent GB-1914-23502 (2) · Patent GB-1909-8118 (2) · Patent GB-1909-3202 (2) · Patent FR-1909-411204 (2) · Patent GB-1912-15735 (2)
Citations from after 1930:

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