Drilldown: Patents

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Patents > Year granted: 1880 - 1889 & Applicant person : DOUGLAS Clark WILLIAM or None

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Office:
Inventors:
None (153) · Otto Lilienthal (7) · William Nelson Hutchinson (4) · William Beeson (4) · Frederick William Brearey (3) · Gustav Lilienthal (3) · Otto Hartung (3)
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Tech fields:
None (224) · LTA (53) · propulsion (33) · navigation (31) · balloon (12) · marine (8) · car (8) · stability (6) · military (5) · glider (5) · control (4) · safety (4) · rudder (4) · frame (4) · flapping (4) · helicopter (4) · ornithopter (4)
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Granted:
Related to aircraft:
CPCs:
None (150) · CPC B64C11/006 (32) · CPC B64C11/346 (27) · CPC B64C11/48 (13) · CPC F05B2260/74 (13) · CPC B64C11/343 (10) · CPC B63H1/04 (10) · CPC B63H1/12 (10) · CPC B64C11/06 (10) · CPC B64C11/36 (9) · CPC B64C3/48 (8) · CPC B64B1/00 (8) · CPC Y02E10/74 (7) · CPC F03D3/00 (7) · CPC B64C27/33 (6)
First filing:
Citations from after 1930:
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