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Patents > Inventor country: DE & Filing date: 1910 - 1919 & IPCs: IPC B64B1/58

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LTA (31) · frame (13) · fabric (8) · envelope (6) · airship (4) · Texture (4) · balloon (4) · balloons (4) · car (4) · Construction (4) · whole (3) · propulsion (3) · navigation (3) · rigid (3) · Dirigible (3) · compartments (3)
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