The provisions of sections 33-655 and 35-2 shall not apply to nor prohibit the use of the words “banks”, “bankers” and “banking” in their titles by The Connecticut Bankers’ Association, The Savings Banks’ Association of Connecticut, any chapter, whether incorporated or not, affiliated and in good standing with The American Institute of Banking, or by any other associations of state bank and trust companies, national banking associations and mutual savings banks or by associations of their employees.