Drilldown: Patents

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Patents > Inventor country : DK or GB & CPCs : CPC B64B1/00 or CPC B64C2700/6274 & Number of text pages: 1-2

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LTA (19) · hybrid (6) · navigation (6) · propulsion (4) · Airplane (4) · balloon (4) · airship (3) · Lift (2) · frame (2) · dirigible (2) · None (2) · ballonet (2)
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