The mark consists of the stylized wording "BT" and the stylized number "20" as well as the design of a rectangle broken into three parts, a diamond and a series of horizontal lines. The rectangle is broken into three sections, with the top and bottom section containing a series of horizontal lines running across the entire section. The number "20" is surrounded by a diamond all of which appears in the top section of the rectangle. The middle section of the rectangle is blank but for the stylized letters "BT". The bottom section of the rectangle contains a series of horizontal lines running across the entire section.
002, 008, 009, 017
Color is not claimed as a feature of the mark.
Diamonds that are completely or partially shaded, Bands, straight , Bands, horizontal