Drilldown: Patents

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Patents > Related to aircraft : 0? or 1911-07-04 or Yes & National tech categories : FR 6.3 or USPC 244/139 & IPCs: IPC B64B1/00

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LTA (26) · propulsion (12) · aerostat (12) · navigation (9) · dirigible (9) · construction (8) · balloon (8) · stability (7) · propellers (6) · nacelle (5) · airship (5) · gas (3) · suspension (3) · design (3) · balloons (3) · ascension (3) · hybrid (3)
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Showing below up to 37 results in range #1 to #37.

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