USPC 244/13

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U.S. patent classification 244/13 is for airplane sustention by fixed airfoils. For the shape and arrangement of sustaining airfoils with relation to the machine, see USPC 244/35 and its subclasses. For the construction of aircraft of all types, see USPC 244/117 and subclasses.[1][2]

References

Patents in category USPC 244/13

Enclosing categories USPC 244/4
Subcategories USPC 244/14, USPC 244/15, USPC 244/16
Keywords Airfoil, Airplane, CA 244/12
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