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Patents > National tech categories : USPC 244/49 or None & Number of text pages: 1-2

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Office:
Inventor country:
US (319) · GB (236) · FR (169) · DE (162) · IT (24) · AT (23) · None (18) · CA (15) · CH (11) · RU (10) · BE (7) · NO (5) · NZ (5) · SE (5) · Prussia (4) · AH (4) · HU (4)
Applicant firm:
None (891) · Blackburn Aeroplane and Motor Co. (6) · Curtiss Aeroplane (6) · Siemens-Schuckert-Werke G.m.b.H. (5) · Moteurs Salmson (4) · E. Rumpler Luftfahrzeugbau G.m.b.H. (4) · Société Anonyme des Établissements Nieuport (4) · Zeppelin-Werke G.m.b.H. (3) · Daimler-Motoren-Gesellschaft (3) · North British Rubber Company (3) · Jacob Lohner & Co. (3)
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Related to aircraft:
Assigned to:
None (962) · Moteurs Salmson (4) · John A. Roebling's Sons (2) · Westinghouse Electric & Manufacturing Company (2) · Sperry Gyroscope Company (2) · Société Anonyme des Établissements Nieuport (2) · Magneso Calcite Fire-Proof Company (2)
National tech categories: (Click arrow to add another value)
IPCs:
None (458) · IPC B64C1/00 (38) · IPC B64C39/00 (36) · IPC B64C3/00 (35) · IPC B64C17/00 (32) · IPC B64C35/00 (28) · IPC B64B1/00 (27) · IPC B64C13/00 (24) · IPC B64C3/18 (22) · IPC B64C11/00 (21) · IPC B64B1/58 (17) · IPC B64C3/38 (14) · IPC B64C25/00 (13) · IPC B64C23/00 (13) · IPC B64C11/04 (11) · IPC B64C1/06 (10) · IPC B64C3/56 (10) · IPC B63H1/12 (9) · IPC B64C5/04 (9) · IPC B64C33/02 (9)
First filing:
Citations from after 1930:
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