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Patents > Year filed: 1900 - 1909 & Year granted: 1904 & Applicant type : Hermann Burkardt or INDIV & IPCs: None

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Edward Smethurst (3) · Alexander Graham Bell (2) · Stefan Hunyor de Visoly (2) · Francis Alexander Barton (2) · Émile-Médéric Bossuet (2) · Arey Van Winegarden (2)
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None (8) · Edward Smethurst (3) · Alexander Graham Bell (2) · Arey Van Winegarden (2) · Émile-Médéric Bossuet (2)
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None (13) · LTA (13) · propulsion (11) · frame (11) · navigation (7) · design (6) · propeller (6) · marine (5) · flapping (5) · propellers (4) · wings (4) · airplane (4) · balloon (4) · hybrid (3) · rudder (3) · construction (3) · control (3) · airfoil (3) · dirigible (3)
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Showing below up to 57 results in range #1 to #57.

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