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Patents > National tech categories : AT 77d or BE K or GB 4 without buoyant

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Office:
Applicant is inventor:
Tech fields:
airplane (291) · design (135) · LTA (132) · Propellers (124) · frame (116) · propulsion (96) · wings (91) · stability (74) · hybrid (68) · Construction (68) · aerodynamics (59) · control (57) · subsystem (49) · navigation (39) · flapping (36) · rudder (35) · lift (33) · propeller (33) · sustentation (27) · whole (26)
Full specification filed date:
Granted:
Supplementary to patent:
None (375) · Patent BE-1909-214032 (32) · Patent BE-1907-199348 (15) · Patent BE-1913-255172 (3) · Patent BE-1907-197626 (3)
Related to aircraft:
Patent agent:
None (385) · A. Wunderlich & Cie, Ingénieurs-Conseils (56) · Raclot (22) · Duvinage (21) · J. Gevers (15) · Kirkpatrick (12) · de Visscher et Graetz (11) · Biebuyck (8) · E. et G. Bede (8) · Raclot et Cie (6) · Gernaert (5) · Verhaeghen (4) · Wunderlich (4) · Borghans-von Kilch et Cie (4) · le Comptoir indus. et tech. (anc. maison Picard) (3) · Parette (3) · R. Wittebolle, Brussels, Belgium (3) · Rest (3)
National tech categories: (Click arrow to add another value)
IPCs:
None (583) · IPC B64C3/00 (2) · IPC B64C3/38 (2)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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