Drilldown: Patents

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Patents > Office : DEG or GR or NL

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Office: (Click arrow to add another value)
Inventors:
None (7) · Alexander Albert Holle (3) · Floris Albert van Heyst (3) · Caspar Braun (3) · Nicolaas Everhard Groeneveld Meyer (2) · Albert Geisler (2) · Josef Süsskind (2) · Lucas Adrianus Aloysius Maria Loonen (2) · August Euler (2)
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Tech fields:
subsystem (18) · airplane (13) · frame (12) · kite (8) · propeller (5) · Construction (5) · LTA (5) · balloon (4) · aerodynamics (4) · Wings (4) · propulsion (4) · propellers (4) · Flugmaschine (4) · flying machine (4)
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Citations from after 1930:
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Showing below up to 61 results in range #1 to #61.

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