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Patents > Office: GB & Supplementary to patent : Patent FR-1916-502839 or None & Assigned to: None & IPCs : IPC B64C3/18 or IPC B64C39/00 & Number of text pages: 4-9

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None (9) · frame (8) · airplane (7) · wings (6) · propulsion (5) · construction (5) · Propellers (5) · Design (5) · spars (3) · aerodynamics (3) · lift (3) · longerons (2) · whole (2) · metal (2) · airship (2) · structure (2) · fuselage (2) · heavier-than-air (2) · Stability (2) · control (2)
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