Drilldown: Patents

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Patents > National tech categories : CH 129b or USPC 244/60 & Number of text pages: 3-5

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Inventors:
Carl Wilhelm Paul (2) · Alfred E. Wunderlich (2) · Otto Schüle (2) · Carl Franz Hubert Hertel (2) · Dane Hurlburt (2)
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Tech fields:
airplane (26) · design (13) · Stability (13) · frame (13) · propellers (7) · wings (6) · propeller (6) · whole (5) · automatic stability (5) · navigation (5) · Lift (5) · rudder (4) · propulsion (4) · helicopter (4) · landing (4) · Control (4) · Construction (4)
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