F24V  30/00		ǳưʳȯǮȿˤäǮѤޤ֡Σ	Apparatus or devices using heat produced by exothermal chemical reactions other than by combustion	3166
F24V  40/00		ưήΤ໤뤤ήΤưƤʪΤδ֤໤ˤǮȯޤϻѡΣ	Production or use of heat resulting from internal friction of moving fluids or from friction between fluids and moving bodies	410
F24V  40/10		ήΤŪʤ̲᤹ΡΣ	the fluid passing through restriction means	68
F24V  50/00		θ顤㡥顤ǮѡΣ	Use of heat from natural sources, e.g. from the sea	666
F24V  99/00		Υ֥饹¾Υᥤ󥰥롼פʬवʤΣ	Subject matter not provided for in other main groups of this subclass	196
