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Baris 79: * [http://www.goodyear.com/corporate/history/history_story.html The Charles Goodyear Story] * [http://todayinsci.com/G/Goodyear_Charles/GoodyearPatent240.htm Today in Science History] – Goodyear's U.S. Patent No. 240: Improvement in the Process of Divesting Caoutchouc, Gum-Elastic, or India-Rubber of its Adhesive Properties, and also of Bleaching the Same, and Thereby Adapting it to Various Useful Purposes. [http://www.escortshup.com escortlar] {{Citation\| last = Iles\| first = George\| year = 1912\| title = Leading American Inventors\| place =New York\| publisher = Henry Holt and Company\| url = https://archive.org/details/leadingamericani00ilesrich\|pages=176–218}}

Charles Goodyear: Perbezaan antara semakan