Drilldown: Patents

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Patents > Year filed: 1910 - 1919 & CPCs: CPC B64B1/00 & Number of text pages: 4-30

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LTA (30) · airship (10) · frame (9) · design (9) · compartments (8) · dirigible (7) · Dirigibles (5) · propulsion (5) · envelope (4) · military (4) · marine (4) · ballonet (4) · balloon (4) · construction (4) · landing (3) · stability (3) · None (3)
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