Drilldown: Patents

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Patents > Office : AH or CA or CH or DE or GB or UN & Applicant person: None & Grant date: 1800 - 1899 & IPCs: None & Number of figures: 3-4

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LTA (8) · balloon (7) · navigation (7) · propulsion (7) · car (5) · gas (3) · frame (3) · propeller (3) · airplane (2) · hybrid (2) · hydrogen (2) · rudder (2) · landing (2) · steam (2) · takeoff (2) · wheels (2) · jet (2)
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