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Patents > CPCs: CPC B64B1/40 & Number of text pages: 1-2 & Number of claims: 1-2

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LTA (28) · balloon (12) · navigation (5) · frame (4) · Design (4) · Suspension (4) · stability (4) · Airship (4) · dirigibles (3) · car (3) · propeller (3) · balloons (3) · nacelle (3)
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