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Patents > Grant date: 1912 & IPCs : IPC B64C25/00 or IPC B64C33/02

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airplane (18) · landing (18) · chassis (11) · frame (11) · wheels (10) · design (8) · wings (6) · fuselage (6) · construction (6) · suspension (4) · ornithopter (4) · flapping (4) · skids (3) · landing gear (3) · None (3) · elasticity (3) · control (3)
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Showing below up to 36 results in range #1 to #36.

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