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Patents > Patent agent : Boramé et Julien or Sprague & Number of diagram pages: 1

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airplane (15) · LTA (13) · frame (8) · construction (6) · Design (5) · propellers (5) · propulsion (4) · Dirigibles (3) · None (3) · rigid (3) · stability (3) · tendeur (3) · dirigible (3)
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