Drilldown: Patents

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Patents > National tech categories : AT 77d or USPC 416/196R & Number of figures: 5-7

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None (15) · Adolf Warchalowski (2) · Heinrich Bier (2)
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Tech fields:
Frame (23) · airplane (20) · LTA (13) · Design (11) · Construction (11) · Wings (10) · propulsion (8) · wheels (8) · chassis (7) · Stability (7) · Subsystem (6) · Flapping (6) · landing (6) · Propellers (6) · propeller (6) · Whole (5) · Control (5)
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