Drilldown: Patents

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Patents > Granted: No & Number of text pages: 3

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Office:
Inventors:
Franz Xaver Wels (2) · None (2)
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Applicant person:
None (3) · Franz Xaver Wels (2)
Applicant is inventor:
Tech fields:
Airplane (11) · frame (8) · None (6) · stability (6) · wings (5) · construction (4) · propulsion (4) · lift (4) · flapping (4) · Design (4) · LTA (4) · navigation (3)
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Citations from after 1930:
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