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Patents > Office : DE or IT & Applicant type: None & CPCs: None & Number of figures: None

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None (174) · airplane (30) · propulsion (27) · LTA (25) · navigation (23) · propeller (16) · marine (11) · balloon (9) · airfoil (8) · design (7) · Frame (7) · stability (6) · parachute (6) · wings (6) · ascension (5)
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