Drilldown: Patents

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Patents > National tech categories : USPC 244/30 or None & Number of claims: 2-4

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GB (380) · US (260) · FR (220) · DE (155) · IT (27) · AT (23) · None (19) · CH (15) · CA (14) · RU (12) · HU (11) · NZ (10) · BE (10) · AU (7) · IE (6) · SE (6) · RO (6)
Applicant firm:
None (1048) · Vickers Limited (12) · Blackburn Aeroplane and Motor Co. (11) · Siemens-Schuckert-Werke G.m.b.H. (5) · British and Colonial Aeroplane Co. (4) · Société Anonyme des Établissements Nieuport (4) · Jacob Lohner & Co. (4) · Moteurs Salmson (4) · Société anonyme Astra (3) · Ateliers d'aviation Louis Bréguet (3) · Blackburn Aeroplane & Motor Co. (3) · Aéroplanes Morane-Saulnier (3) · Daimler-Motoren-Gesellschaft (3) · North British Rubber Company (3)
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IPCs:
None (414) · IPC B64C39/00 (63) · IPC B64C1/00 (60) · IPC B64C17/00 (58) · IPC B64B1/00 (47) · IPC B64C3/00 (42) · IPC B64C13/00 (33) · IPC B64C35/00 (32) · IPC B64C3/38 (30) · IPC B64C11/00 (25) · IPC B64B1/58 (20) · IPC B64C3/18 (18) · IPC B64C27/04 (18) · IPC B64C23/00 (17) · IPC B64C17/06 (17) · IPC B64C25/00 (15) · IPC B64C3/54 (10) · IPC B64C3/56 (10) · IPC B62C5/04 (10)
First filing:
Cites these patents:
None (1145) · Patent GB-1913-5223 (2) · Patent GB-1909-8118 (2) · Patent GB-1912-5966 (2) · Patent GB-1912-15735 (2)
Citations from after 1930:
Number of text pages:
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