Inventor Phillip W Pratt obtained the patent for his sprinkler system designed to extinguish fires.
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Inventor John Hyatt registered cellulose nitrate (celluloid) as a trademark.
Harvey Kennedy patented the modern shoelace, which included aglet reinforced tips.
Inventor William Gray received a patent for creating the telephone that uses coins to operate it.
Alexander Graham Bell applied for a patent for the telephone.
Jan Matzeliger gave a public demonstration about his shoe-producing invention in Lynn, Massachusetts.
