Drilldown: Patents

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Patents > Year granted: 1902 & National tech categories: None

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Josef Simkó (3) · Viktor Tarczal (3) · Edmund Roheim (3) · Frank Exline (2) · John Gardner (2)
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None (20) · propulsion (6) · LTA (5) · propeller (5) · navigation (5) · kite (4) · car (3) · design (3) · whole (3) · helicopter (3) · frame (2) · hybrid (2) · balloon (2) · military (2) · marine (2) · aerodynamics (2) · Paddle wheel (2) · airship (2) · ascension (2)
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Showing below up to 54 results in range #1 to #54.

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