Word: calva
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Dates: during 1940-1949
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...process was developed by a St. Paul inventor named Jose Baraquiel Calva, onetime Mexican government engineer. By treating fibers with several chemicals, including cresol, alcohol, benzol and hydrochloric acid, he converts them into a resinous plastic. The fibers can then be stiffened or softened, straightened or curled, made mothproof, shrinkproof, even waterproof...
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