Drilldown: Patents

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Patents > Inventor country : CH or GB or RO & Applicant person: None & Filing date: 1890 - 1899 & IPCs : IPC B64C11/00 or None & First filing: None

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propulsion (14) · navigation (13) · LTA (12) · balloon (11) · propeller (10) · frame (9) · design (6) · subsystem (4) · heavier-than-air (3) · electronics (3) · electricity (3) · rudder (3) · communications (3)
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Showing below up to 32 results in range #1 to #32.

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