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Patents > Office : CH or IT & Tech fields : Airplane or propeller or safety or subsystem

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None (4) · Louis Blériot (4) · Henri Dufaux (4) · Federico Capone (4) · Armand Dufaux (4) · Dane Hurlburt‎ (3) · Guido Antoni (3) · Ugo Antoni (3) · Joseph Wetterwald (3) · Achille Bertelli (3)
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None (68) · Joseph Wetterwald (3) · Louis Blériot (3) · Dane Hurlburt (3) · Guido Antoni (3) · Ugo Antoni (3) · Adalbert Plaček (2) · Carl Wilhelm Paul (2) · Carl Franz Hubert Hertel (2) · Nazaire Lacrotte (2) · Otto Schüle (2)
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None (85) · Patent US-1913-04-21 George Raymond Lawrence (2)
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