Hermann Hammesfahr (original) (raw)

Hermann Hammesfahr (February 20, 1845 – November 23, 1914) was a Prussian-American inventor who invented a type of fiberglass cloth in which glass was interwoven with silk. He was awarded the patent by the United States Patent Office in 1880. This was the earliest fiberglass of any kind that is known to have been patented.