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Patents > Office : ?? or DE or None & CPCs: CPC B64B1/58 & Number of diagram pages: 1

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LTA (25) · frame (10) · balloon (6) · airship (5) · car (5) · gas (4) · design (4) · compartments (3) · navigation (3) · pressure (2) · propeller (2) · material (2) · propulsion (2) · rigid (2) · piloting (2) · Tragkörper (2) · subsystem (2) · ballonet (2) · whole (2) · aluminum (2)
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