CPC Main Group F02F 1/00 Cylinders; Cylinder heads 7 direct subcodes Child Classifications Navigate with arrow keys, Enter to open F02F 1/002 F02F 1/004 F02F 1/02 having cooling means (cylinder heads F02F1/26) F02F 1/18 Other cylinders F02F 1/24 Cylinder heads F02F 2001/006 F02F 2001/008