DIFF Subgroup
F03D 3/02 having a plurality of rotors
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor > having a plurality of rotors
CPC:
Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor (controlling thereof F03D7/06) > having a plurality of rotors
No child classifications to compare. This is a leaf node in both IPC and CPC.