.~ With specific means acted upon by wind to provide sailpower frame, etc.) {2}
39.31
.~.~ Having spaced sail surfaces defining airfoil
DEFINITION
Classification: 114/39.31
Having spaced sail surfaces defining airfoil:
(under subclass 39.29) Subject matter wherein the extent of material by which the wind is used to propel the hull through the water is a plurality of separated elements.
SEE OR SEARCH THIS CLASS, SUBCLASS:
102.32, for a sail constructed from a plurality of connected panels movable relative to each other.
102.33, for a sail constructed from a plurality of edge connected panels.
