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Patents > Granted: Yes & IPCs: IPC B64B1/58 & Number of claims: 8-30

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LTA (6) · construction (3) · navigation (3) · texture (3) · ballonet (3) · car (3) · dirigible (2) · passenger (2) · propeller (2) · hybrid (2) · propulsion (2) · frame (2) · fabric (2) · envelope (2) · military (2) · nacelle (2) · stability (2) · airplane (2) · airfoil (2)
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