Subclass	Subgroup	Patent
B22C	5/0472	11103918
B22D	21/04	11103919
	41/02	11103920
	41/502	11103921
B22F	1/0018	11103922
	1/025	11103923
	3/03	11103924
	5/106	11103925
	9/16	11103926
	10/85	11103927
	12/00	11103928