Drilldown: Patents

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Patents > Year granted: 1900 - 1999 & Inventor country: DE & Full specification filed date: 1910 - 1919

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Airship (10) · design (10) · LTA (10) · frame (9) · airplane (9) · construction (8) · Fabric (5) · subsystem (5) · stability (5) · hangars (4) · balloon (4) · propellers (4) · control (4) · aerodynamics (3) · infrastructure (3) · None (3) · propulsion (3) · Texture (3) · wings (3)
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