Frank Shuman
In 1892, Frank Shuman was granted a patent for his invention of wired safety glass. Additional patents were issued relating to the process of making wire glass and machines for making wire glass. In 1914 Shuman invented a process for making laminated safety glass, called safety glass, and manufactured by the Safety Glass Company. In 1916 he patented a "Danger Signal" for railroad crossings, as well as the use of liquid oxygen or liquid air to propel a submarine.
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