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Patents > IPCs: IPC B64B1/62 & First filing : No or Yes

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LTA (46) · gas (15) · navigation (10) · balloon (9) · ballonet (7) · balloons (6) · airship (5) · hydrogen (5) · Compartments (5) · safety (5) · propulsion (5) · lift (4) · Dirigibles (4) · Construction (4) · Aerostat (4)
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Showing below up to 55 results in range #1 to #55.

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