Drilldown: Patents

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Patents > Year granted: 1880 - 1889 & Office : ?? or AU or LU or NL or Other & Inventor country: US & First filing : No or Other & Citations from after 1930: None & Number of diagram pages: 1-2

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Tech fields:
LTA (14) · balloon (8) · propulsion (7) · navigation (7) · propeller (5) · None (4) · stability (3) · rudder (3) · windmill (3) · landing (2) · military (2) · safety (2) · airship (2) · car (2) · mooring (2)
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National tech categories:
USPC 244/30 (5) · None (4) · DE 77 (2) · USPC 244/73R (2)
CPCs:
CPC B64B1/00 (6) · None (3) · CPC Y02E10/72 (2)
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