Drilldown: Patents

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Patents > Year granted: 1880 - 1889 & IPCs: None & Number of diagram pages: 2-7

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Tech fields:
LTA (18) · navigation (12) · Propulsion (10) · propeller (9) · rudder (8) · frame (7) · flapping (6) · ornithopter (5) · balloon (5) · stability (4) · military (3) · glider (3) · None (3) · car (3) · windmill (3)
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None (10) · DE 77 (5) · USPC 244/28 (4) · USPC 114/21.1 (2) · USPC 244/26 (2)
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CPCs:
CPC B64B1/00 (8) · None (6) · CPC B64C33/02 (3) · CPC Y02E10/72 (3) · CPC B64C27/54 (3) · CPC B64C11/006 (2) · CPC E05G1/024 (2)
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