Black Hammond typewriter on a wooden base. Missing wooden top section. Marked "Hammond Multiplex." See "Interpretation" for information on how the typewriter helped women enter the workforce in the United States. Before 1900 most businesses were small and were run by men. Many men worked as clerks and were responsible for writing (by hand) bills of sale and the company's correspondence. By 1920 this male world had changed dramatically. Women now made up over 50% of office workers. Working in an office became an acceptable occupation for women, and although few women clerks become executives, the job paid better than most jobs that women were allowed to do at the time. The invention of the typewriter helped women enter what had previously been a man's profession. The typewriter increased efficiency, gave offices a standardized output, and made it possible to generate more paperwork resulting in more jobs for women. See Thomas Schlereth Everyday Life in Victorian America for more information on changes in whitecollar officework. American communities in history. 16 History; 18 Social systems.