Drilldown: Patents

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Patents > Year granted: 1910 & Office : ?? or FR & Assigned to: None & National tech categories : DE 77h or FR 6.4 & CPCs : CPC B64B1/00 or CPC B64B1/58 & Number of text pages: 1-2

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LTA (18) · Frame (7) · design (4) · hybrid (4) · Subsystem (4) · balloon (4) · stability (3) · dirigibles (3) · compartments (3) · hydrogen (2) · nacelle (2) · envelope (2) · propulsion (2) · propellers (2) · balloons (2) · airplane (2) · sustentation (2)
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