^ 1.01.1How rubber bands are made. This reference states that the rubber is vulcanized before it is extruded. The rubber is then "cured" on mandrels.[與來源不符] The "Made How" reference appears to directly copy text from other sources, some of which appears to be incorrect. The exact same text regarding Thomas Hancock appears in a 1995 book entitled "CD's, super glue and salsa: how everyday products are made" by Kathleen Witman, Kyung-Sun Lim, Neil Schlager. Contradicting other sources, both credit Thomas Perry rather than Stephen Perry for the invention of the rubber band.