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Patents > CPCs : CPC B64B1/40 or CPC B64F2700/6261 & Number of claims: 7-60

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balloon (7) · LTA (7) · hydroaeroplane (5) · navigation (4) · rudder (4) · frame (4) · None (3) · construction (3) · stability (3) · airplane (3) · landing (3) · kite (3) · safety (2) · marine (2) · design (2) · gas (2) · wings (2)
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