Created in Coaticook: One Town's Story of Ingenuity and Creativity Ingénieuse Coaticook : Histoire de l'inventivité et de la créativité des citoyens Beaulne Museum
Patent awarded in the United States on December 20th, 1925; no. 1567121.
Patent awarded to Frank Sleeper on July 30th, 1886, for one of his finest inventions, registered no. 24590.