Drilldown: Patents

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Patents > Inventor country: DE & IPCs : IPC B64B1/58 or IPC B64C23/00 & Number of text pages: 1-2

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LTA (32) · frame (14) · envelope (7) · fabric (7) · propeller (6) · balloon (6) · airship (5) · balloons (5) · whole (5) · construction (5) · propulsion (4) · design (4) · car (4) · Airplane (4) · dirigible (3) · hybrid (3) · rigid (3) · Texture (3) · compartments (3)
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