C.E.L. Renames Gematrat Emerald Filler

The name of the emerald filler known as Arthur Groom-Gematrat is being changed to ExCel. The name change came after the product's maker, Clarity Enhancement Laboratory (C.E.L.) in New York, improved it. Introduced in the United States in 1995 by Arthur Groom, president of Arthur Groom-Gematrat and

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