Drilldown: Patents

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Patents > Office : CU or GB or MX & Supplementary to patent : Patent AT-1911-57225 or Patent NO-1915-12-15 Carl Alfred Johansson or None & IPCs : IPC B64C13/00 or IPC B64C23/00 or None & First filing: None & Number of diagram pages: 2

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navigation (9) · propulsion (8) · LTA (6) · propeller (4) · rudder (3) · heavier-than-air (3) · frame (3) · military (3) · instrument (3) · stability (3) · airplane (3) · ascension (2) · hybrid (2) · airfoil (2) · flapping (2) · wings (2) · compass (2) · jet (2) · balloon (2)
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