Drilldown: Patents

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Patents > Year granted: 1890 - 1899 & Office : CA or DE or FI & Number of text pages: 3-70

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LTA (12) · navigation (7) · propulsion (7) · balloon (6) · frame (6) · None (5) · car (4) · design (4) · airship (3) · propeller (3) · stability (2) · sail (2) · rudder (2) · hybrid (2) · dirigible (2) · compartments (2)
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