Subclass	Subgroup	Patent
F04B	1/04	12392331
	39/0044	12392332
	43/026	12392333
	43/043	12392334
	43/06	12392335
	43/084	12392336
	49/20	12392337
	51/00	12392338
	53/08	12392339
F04C	2/16	12392340
	27/001	12392341
	29/0057	12392342
	29/042	12392343
	29/06	12392344
F04D	13/06	12392345
	13/10	12392346
	17/10	12392347
	25/0693	12392348
	25/082	12392349
	25/105	12392350
	27/003	12392351
	27/007	12392352
	29/083	12392353
	29/282	12392354
	29/5806	12392355
	29/582	12392356
	29/5853	12392357
	29/644	12392358
	29/708	12392359