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Patents > Office : BE or IT

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Tech fields:
airplane (242) · LTA (115) · Design (102) · propellers (99) · propulsion (79) · hybrid (65) · stability (60) · wings (59) · frame (52) · control (41) · navigation (40) · aerodynamics (38) · construction (36) · rudder (26) · Sustentation (25) · Lift (23) · marine (22) · propeller (21) · None (21)
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None (317) · Patent BE-1909-214032 (33) · Patent BE-1907-199348 (16) · Patent SE-1906-23283 (4) · Patent BE-1913-255172 (3) · Patent FR-1902-326727 (3) · Patent BE-1907-197626 (3)
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None (295) · A. Wunderlich & Cie, Ingénieurs-Conseils (57) · Raclot (22) · Duvinage (21) · J. Gevers (16) · Kirkpatrick (12) · de Visscher et Graetz (11) · E. et G. Bede (9) · Biebuyck (8) · Raclot et Cie (6) · Gernaert (5) · Verhaeghen (4) · Wunderlich (4) · Borghans-von Kilch et Cie (4) · Parette (3) · Rest (3) · le Comptoir indus. et tech. (anc. maison Picard) (3) · R. Wittebolle, Brussels, Belgium (3)
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