36 Brokerage, namely, the buying and selling for others in the field of aircraft, airplanes, and jets; airplane brokerage services, namely, arranging for the acquisition, sales and fractional sales of aircraft, airplanes, and jets for others; aircraft brokerage, namely, arranging for the sale and financing of ownership interests in aircraft, airplanes, and jets; aircraft brokerage, namely, financial managing and arranging of fractional interests for aircraft, airplanes, and jets