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Patents > National tech categories : DE 77h or USPC 244/22 or None & Number of claims: 3-5

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GB (332) · US (228) · FR (163) · DE (108) · IT (23) · None (19) · AT (15) · CH (14) · CA (12) · HU (10) · NZ (9) · BE (9) · RU (9) · RO (7) · IE (7) · AU (6) · MX (3) · IN (3)
Applicant firm:
None (871) · Blackburn Aeroplane and Motor Co. (12) · Aéroplanes Morane-Saulnier (3) · Planes Ltd. (3) · Varioplane Company (3) · Blackburn Aeroplane & Motor Co. (3) · Sopwith Aviation Company Limited (2) · Grand Rapids Trust Company (2) · Jacob Lohner & Co. (2) · British Westinghouse Electric and Manufacturing Co. (2) · Lang Propeller Limited (2) · British and Colonial Aeroplane Co. (2) · Sperry Gyroscope Company (2) · Magneso Calcite Fire-Proof Company (2) · Siemens-Schuckert-Werke G.m.b.H. (2) · Zeppelin-Werke G.m.b.H. (2) · E. Rumpler Luftfahrzeugbau G.m.b.H. (2)
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IPCs:
None (346) · IPC B64C39/00 (61) · IPC B64C1/00 (54) · IPC B64C17/00 (52) · IPC B64C3/00 (32) · IPC B64C35/00 (30) · IPC B64B1/00 (29) · IPC B64C13/00 (24) · IPC B64C11/00 (23) · IPC B64C3/18 (21) · IPC B64C3/38 (19) · IPC B64C23/00 (18) · IPC B64C25/00 (17) · IPC B64C27/04 (12) · IPC B64C33/00 (11) · IPC B64B1/58 (10) · IPC B64C17/06 (10) · IPC B64B1/62 (9) · IPC B64C11/16 (9) · IPC B64C3/56 (8)
First filing:
Cites these patents:
None (944) · Patent GB-1914-23502 (2) · Patent GB-1912-15735 (2) · Patent GB-1912-5966 (2)
Citations from after 1930:
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