sign on, 1  to employ; hire. 2  to bind oneself to work, as by signing a contract: He signed on as a pitcher with a major-league team. 3  to start radio or television broadcasting, especially at the beginning of the day. 4  Computers. log1 (def 17a).
FROM FIBER TO FABRIC: ACETATE INTRODUCTION Initially invented in Europe as a varnish for airplane wings, acetate was first produced in the United States in 1924 making it the second oldest manufactured fiber.
For the. first time in 1932, synthetic rubber (instead of. natural rubber) latex was used for the latex-. modified systems. In 1933, synthetic resin latexes. (including polyvinyl acetate latexes) were used in. the modified systems, and by the end of the 1930. the inventions clearly suggested that all types of.