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Patents > Grant date: 1896 & Citations from after 1930: None

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None (12) · Rudolph Kosch (3) · F. Gaebert (2) · Edward Smethurst (2) · Edward Joel Pennington (2)
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None (17) · LTA (12) · propulsion (9) · Airplane (6) · propeller (6) · instrument (5) · balloon (5) · navigation (5) · frame (5) · electricity (3) · marine control (2) · helicopter (2) · gas (2) · electronics (2) · design (2) · rigid (2) · rudder (2) · car (2)
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