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Patents > Inventors : Alfred E. Wunderlich or Charlotte Sturgess

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propellers (48) · airplane (46) · hybrid (39) · LTA (34) · Propulsion (10) · rarefaction (10) · sustentation (8) · ascension (7) · helicopter (4) · None (4) · design (3) · frame (3) · whole (2) · ball bearings (2) · instrument (2) · compartments (2) · airship (2) · Buoyancy (2) · gliders (2) · motors (2)
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Showing below up to 69 results in range #1 to #69.

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