Frank J. Zamboni (1901-1988) was an inventor and mechanic who invented the Zamboni Ice Resurfacing Machine in 1949. His machine is used in ice rinks to resurface marred ice. In 1939, Zamboni and his brother Lawrence built a 20,000-square-foot enclosed ice skating rink in Paramount, California, USA. Resurfacing the ice was a major problem, and took many men and assorted equipment. In 1942, Zamboni transformed a tractor to scrape and smooth the ice in a single pass. After years, he perfected his it, releasing his "Model A Zamboni Ice Resurfacer" in 1949, (patent #2,642,679).
The Olympic medal-winner Sonja Henie was one of his first customers.The word zipper was coined by B.F. Goodrich in 1923, whose company sold rubber galoshes equipped with zippers. Goodrich is said to have named them zippers because he liked the zipping sound they made when opened and closed.
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