Subclass	Subgroup	Patent
F25B	7/00	12392527
		12392528
	21/04	12392529
	39/02	12392530
	41/385	12392531
	43/006	12392532
	49/02	12392533
F25C	1/12	12392534
	1/22	12392535
	1/25	12392536
F25D	13/00	12392537
	13/04	12392538
	13/067	12392539
	17/042	12392540
	19/006	12392541
	23/028	12392542
		12392543
	23/065	12392544
	23/087	12392545
	29/005	12392546
		12392547
		12392548
F25J	1/0022	12392549
	1/0234	12392550
		12392551