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Patents > Patent agent : Boult, Wade & Tennant or Lafond & Number of text pages: 2

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propellers (7) · None (5) · LTA (4) · navigation (4) · construction (4) · Airplane (4) · parachute (3) · Design (2) · Subsystem (2) · balloon (2) · stability (2) · compartments (2) · control (2) · hybrid (2) · frame (2)
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