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Patents > Grant date: 1914 & IPCs : IPC B64B1/00 or IPC B64D17/00

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LTA (23) · frame (12) · safety (7) · dirigibles (5) · rigid (5) · airship (5) · balloon (5) · dirigible (5) · parachute (4) · Airplane (4) · ballonet (4) · compartments (4) · gas (3) · parachutes (3) · Design (3) · balloons (3) · military (3)
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Showing below up to 38 results in range #1 to #38.

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