Drilldown: Patents

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Patents > Tech fields : hybrid or lift or propellers & Grant date: 1800 - 1899

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Inventors:
Louis-Honoré Gauthier (6) · Dr. Bernhard Reinhard Beenen (3) · Jules Cezar Ribeiro de Souza (2)
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None (13) · Louis-Honoré Gauthier (5) · Dr. Bernhard Reinhard Beenen (2)
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Showing below up to 71 results in range #1 to #71.

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