This chapter applies only to persons engaged in business as industrial loan and thrift companies or industrial banks or industrial investment companies. Neither the requirement of registration nor any other provision of this chapter shall apply to any state or national bank, other than industrial banks, any state or federal savings and loan association, any state or federal credit union, any insurance company, or any other person engaged in the business of making loans whose activities in so doing are subject to supervision and regulation by a state or federal administrative agency; nor shall the requirement of registration or any other provision of this chapter apply to licensed pawnbrokers, or to any person engaged in the sale of goods or services as a licensed pawnbroker.