Drilldown: Patents

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Patents > Year granted: 1909 & Publication date: 1900 - 1999 & CPCs : CPC B64B1/58 or CPC B64C2700/6281 & Citations from after 1930: None

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LTA (11) · Stability (3) · frame (3) · airship (3) · Navigation (3) · Balloons (3) · Design (3) · Subsystem (3) · construction (2) · electricity (2) · safety (2) · helicopter (2) · rudder (2) · balloon (2) · airplane (2)
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