011524, 160104, 241714, 241725, 260103, 260111, 260515, 260521, 261114, 261121, 261521, 261701, 2617 - Sound waves, including designs depicting sound. Record players; tape players (video and audio); answering machines; stereo components, including sound amplifiers and speakers. Punctuation marks, including commas(,), question marks(?), exclamation points(!�), ampersands(&), at symbols(@), and hyphens(-). Other notational signs and symbols, including pH, hazardous materials symbols, degree sign(�), pound sign(#), equal signs(=), and other mathematical symbols. Incomplete circles (more than semi-circles). Letters, numerals, punctuation, geometric figures, objects, humans, plants or animals comprising a circle. Four or more triangles. Triangles that are completely or partially shaded. Three or more rectangles. Rectangles that are completely or partially shaded. Polygons that are completely or partially shaded. Straight line(s), band(s) or bar(s). Vertical line(s), band(s) or bar(s). Horizontal line(s), band(s) or bar(s). Curved line(s), band(s) or bar(s). Geometric figures forming letters or numerals, including punctuation. Representations of objects forming letters or numerals, including punctuation.