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Patents > Filing date: 1910 - 1919 & IPCs : IPC B64B1/40 or IPC E04H 6/44

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LTA (20) · stability (9) · suspension (8) · nacelle (6) · balloons (5) · Design (5) · military (4) · cables (4) · construction (4) · balloon (3) · captive (3) · airship (3) · dirigibles (3) · ballast (2) · rudder (2) · compartments (2) · ballonet (2) · control (2) · steering (2) · Frame (2)
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