Drilldown: Patents

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Patents > Office : DE or DEG & Filing date: 1800 - 1899 & Supplementary to patent : Patent NO-1915-12-15 Carl Alfred Johansson or None & Number of claims: 2-3

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LTA (14) · navigation (10) · frame (7) · propulsion (6) · None (6) · balloon (4) · propeller (4) · car (4) · balloons (3) · design (3) · airship (3)
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