Drilldown: Patents

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Patents > Year filed: 1890 - 1899 & National tech categories : FR 5 or None & Number of text pages: 1-2

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Inventors:
Edward Joel Pennington (2)
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Tech fields:
propeller (7) · propulsion (5) · marine propulsion (5) · LTA (5) · None (4) · fabric (4) · rudder (3) · propellers (3) · gas (3) · marine (3) · balloons (3) · airplane (3) · balloon (3) · kite balloon (2) · wheels (2) · frame (2) · hybrid (2)
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