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Patents > Family year: 1883 & Citations from after 1930: None

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None (14) · Georg Wellner (7) · Otto Hartung (4) · Foucher (2) · Folacci (2)
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propulsion (21) · None (19) · LTA (18) · navigation (16) · balloon (6) · stability (4) · airship (4) · frame (3) · steering (3) · control (3) · balloons (3) · hybrid (2) · dirigible (2) · parachute (2) · propeller (2) · rudder (2) · ascension (2) · steam (2) · marine (2) · sail (2)
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