Drilldown: Patents

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Patents > Year filed: 1915 & First filing: None

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None (19) · Everard Richard Calthrop (4) · Heinrich Bier (3) · Reinhold Richter (2) · Oscar Alvin Danielson (2)
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Tech fields:
airplane (25) · subsystem (11) · frame (9) · construction (7) · propellers (7) · None (6) · parachute (6) · wings (6) · biplane (6) · design (5) · LTA (5) · propeller (4) · control (4) · propulsion (4)
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Showing below up to 64 results in range #1 to #64.

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