DIFF Subgroup
F03D 3/0436 Full Title
Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor (controlling thereof F03D7/06) > having stationary wind-guiding means, e.g. with shrouds or channels (F03D9/35 takes precedence)
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.