| http://www.w3.org/ns/prov#value | - The composition, which has a gray color is sprayed on a nonabsorbent white backing; at 61 C. it turns black. ' of uses and applications. able number of variations and specific examples of my In yet another variation of my invention, I have found that a monomeric polymerizable crystalline compound whose melting point substantially coincides with the temperature at which polymerization takes place,
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