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Patents > Year filed: 1914 & IPCs : IPC B64B1/00 or IPC B64C13/00

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LTA (22) · frame (11) · compartments (5) · Dirigibles (5) · construction (5) · airship (5) · stability (4) · balloon (4) · Design (4) · airplane (4) · safety (4) · steering (3) · dirigible (3) · rigid (3) · gas (3)
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Showing below up to 36 results in range #1 to #36.

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