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Patents > Inventors : Alfred E. Wunderlich or Émile Letord & First filing: No

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propellers (42) · airplane (39) · LTA (34) · hybrid (34) · rarefaction (7) · construction (5) · assembly (4) · mounting (4) · structure (4) · sustentation (3) · propulsion (3) · instrument (3) · None (2) · dashboard (2) · monitoring (2) · motors (2) · compartments (2) · control (2) · ball bearings (2) · ascension (2)
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