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Patents > National tech categories: DK 77 & CPCs : CPC Y10T24/1938 or None

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Office:
Inventors:
None (4) · Alfred John Macy (4) · Carl Franz Hubert Hertel (2) · Richard Wilcke (2) · Carl Wilhelm Paul (2) · Christian Magnus Gyde Jensen (2) · Albert Graff (2)
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Tech fields:
Airplane (20) · Design (16) · Frame (12) · stability (11) · Wings (10) · LTA (10) · navigation (8) · Construction (7) · Lift (7) · propulsion (6) · Subsystem (5) · Propellers (4) · balloon (4) · Control (4)
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Citations from after 1930:
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Showing below up to 46 results in range #1 to #46.

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