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Patents > IPCs: IPC B64B1/40 & Citations from after 1930: None & Number of text pages: 2-9

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LTA (35) · balloon (13) · stability (12) · suspension (10) · Design (8) · Airship (7) · Frame (7) · nacelle (7) · captive (7) · propulsion (6) · balloons (6) · car (6) · navigation (6) · construction (5) · kite (4) · cables (4) · rudder (4) · airfoil (4) · control (4)
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