Drilldown: Patents

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Patents > Year filed: 1910 - 1919 & IPCs: None & Number of claims: None & Number of diagram pages: 2-50000000

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Office:
Inventors:
None (3) · Alexander Albert Holle (2)
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Applicant person:
None (12)
Applicant is inventor:
Tech fields:
airplane (16) · None (9) · frame (8) · stability (8) · subsystem (6) · LTA (6) · helicopter (6) · propulsion (5) · Propellers (5) · propeller (5) · airfoil (4) · Airship (4) · navigation (4) · landing (3) · Hybrid (3) · heavier-than-air (3) · wings (3) · automatic stability (3)
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Citations from after 1930:
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