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Patents > Office : AT or BE or IT or MX or NZ & Supplementary to patent : Patent GB-1909-12556 or Patent NO-1915-12-15 Carl Alfred Johansson or None

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Tech fields:
Airplane (234) · design (103) · LTA (91) · frame (82) · wings (74) · propulsion (73) · stability (67) · propellers (67) · construction (52) · None (46) · aerodynamics (45) · control (40) · subsystem (39) · navigation (39) · propeller (38) · lift (27) · hybrid (26) · rudder (26) · whole (25) · flapping (23)
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Patent agent:
None (448) · A. Wunderlich & Cie, Ingénieurs-Conseils (16) · Raclot (16) · Duvinage (14) · Kirkpatrick (7) · De Visscher et Graetz (7) · Raclot et Cie (6) · J. Gevers (6) · E. et G. Bede (6) · Henry Hughes (5) · Gernaert (4) · Parette (3) · Rest (3) · R. Wittebolle, Brussels, Belgium (3) · Borghans-von Kilch et Cie (3) · Biebuyck (3) · Wunderlich (3) · Baldwin & Rayward (3)
IPCs:
None (556)
First filing:
Citations from after 1930:
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