Drilldown: Patents

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Patents > IPCs: None & Number of text pages: 5-20 & Number of claims: 8

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Office:
Inventors:
William Alfred South (2) · Charles Groombridge (2)
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Applicant person:
None (3) · William Alfred South (2) · Charles Groombridge (2)
Applicant is inventor:
Tech fields:
airplane (12) · Propulsion (11) · stability (8) · None (6) · design (6) · Propellers (6) · frame (6) · propeller (5) · landing (5) · marine (4) · navigation (4) · safety (4) · wings (3) · cables (3) · car (3) · control (3) · HTA (3)
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Citations from after 1930:
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