Drilldown: Patents

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Patents > Year granted: 1917 & Applicant firm: None & Number of diagram pages: 3-4

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Inventors:
James Jesse Jackson (2) · Frank Ezra Summers (2)
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Frank Ezra Summers (2) · James Jesse Jackson (2)
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HTA (7) · None (6) · airplane (6) · airship (5) · helicopter (4) · control (3) · stability (3) · hydroaeroplane (3) · LTA (2) · hybrid (2) · propellers (2)
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