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Patents > Applicant person : DOUGLAS Clark WILLIAM or None & Granted: No

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None (54) · RICHTER (8) · Gustav Lilienthal (7) · D'Aldborough (4) · O. Koch (2) · A. LILIENTHAL (2) · Otto Lilienthal (2) · Louis-Constant-Célestin Magois (2) · Joseph Gillard (2) · O. SCHMIDT (2)
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None (154) · balloon (29) · navigation (20) · propulsion (14) · airplane (10) · LTA (9) · frame (6) · stability (5) · propeller (5) · marine (5) · construction (4) · Design (4) · airfoil (3) · Biplane (3)
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