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Patents > Granted: Yes & National tech categories : BE K or USPC 244/30

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Tech fields:
Airplane (168) · LTA (121) · propellers (92) · design (82) · hybrid (64) · propulsion (58) · frame (45) · wings (42) · stability (38) · control (35) · aerodynamics (35) · Navigation (30) · rudder (28) · sustentation (25) · construction (24) · lift (21) · safety (18) · steering (18) · ascension (17) · balloon (15)
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None (317)
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Supplementary to patent:
None (226) · Patent BE-1909-214032 (32) · Patent BE-1907-199348 (15) · Patent BE-1913-255172 (3) · Patent BE-1907-197626 (3) · Patent FR-1911-426626 (2) · Patent FR-1900-299924 (2) · Patent BE-1913-259683 (2) · Patent GB-1913-16499 (2) · Patent BE-1910-225558 (2) · Patent FR-1911-430455 (2) · Patent BE-1909-218585 (2) · Patent FR-1913-467415 (2)
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None (130) · A. Wunderlich & Cie, Ingénieurs-Conseils (56) · Duvinage (21) · Raclot (21) · Kirkpatrick (12) · De Visscher et Graetz (11) · Biebuyck (8) · E. et G. Bede (8) · Raclot et Cie (6) · Munn & Co. (5) · Gernaert (5) · Verhaeghen (4) · J. Gevers (4) · Wunderlich (4) · Borghans-von Kilch et Cie (4) · Rest (3) · le Comptoir indus. et tech. (anc. maison Picard) (3) · Parette (3)
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