The symposium was held during the seventy-third annual meeting of the American Society for Testing and Materials, Toronto, June 21-26, 1970, and spons...
The symposium was held during the seventy-third annual meeting of the American Society for Testing and Materials, Toronto, June 21-26, 1970, and sponsored by the Committee F-5 on Carbon Paper, Inked Ribbon, and Similar Image Producing Products.