010702, 050302, 130102, 150701, 200101, 200505, 240101, 241725, 260102, 260108, 260109, 260121, 2607 - Globes with meridians and parallel lines only. Oak leaf. Torches, including the Olympic Torch, blowtorches and welding torches. Cog wheels (wheels with teeth), gears, several wheels in juxtaposition. Pencils, pens (excluding quill pens), crayons, pen points, chalk, markers. Open books. Shields or crests (plain) with neither a figurative element nor an inscription contained therein or superimposed thereon. Other notational signs and symbols, including pH, hazardous materials symbols, degree sign(�), pound sign(#), equal signs(=), and other mathematical symbols. Plain single line circles. Letters, numerals or punctuation forming or bordering the perimeter of a circle. Geometric figures, objects, humans, plants or animals forming or bordering the perimeter of a circle. Circles that are totally or partially shaded. Plain diamonds with single or multiple line borders. Two diamonds. Diamonds that are completely or partially shaded.