Drilldown: Patents

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Patents > Office : NO or US & Applicant person: None & Filing date: 1800 - 1899

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Office: (Click arrow to add another value)
Inventors:
William Beeson (4) · Stewart Cairncross (3) · Charles Abbott Smith (2) · Lincoln A. Merriam (2) · Mark W. Dewey (2)
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Tech fields:
LTA (38) · propulsion (33) · None (27) · navigation (19) · propeller (18) · military (17) · frame (17) · balloon (15) · car (13) · marine (13) · projectile (11) · parachute (11) · rudder (10) · flapping (10) · stability (8) · fun (8) · kite (7) · landing (6) · cargo (5) · safety (5)
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National tech categories:
None (52) · USPC 244/3.23 (9) · USPC 244/30 (6) · USPC 244/28 (5) · USPC 244/155R (4) · USPC 244/64 (4) · USPC 244/96 (3) · USPC 244/153R (3) · USPC 244/51 (3) · USPC 244/97 (3)
CPCs:
None (51) · CPC B64B1/00 (13) · CPC B64C11/006 (5) · CPC F42B10/30 (4) · CPC B64C9/00 (3) · CPC A63H27/08 (3) · CPC A63H27/087 (3) · CPC B64C23/005 (3)
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Cites these patents:
Citations from after 1930:
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