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Patents > Office: FR & IPCs : 1 or IPC B64C3/56

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airplane (15) · wings (11) · frame (10) · design (8) · None (5) · folding (4) · Rudder (3) · assembly (3) · propellers (3) · chassis (3) · construction (3)
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Showing below up to 35 results in range #1 to #35.

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