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17 St. 16 Min, 19 Dez 1915 Jahr - Engineers S. E. Bramer, Jacob Roth, F. R. S. Kaplan, Simon Loeb and William Smith, Sr. create the first permanent metallurgical bond between copper and steel in Rankin, Pennsylvania

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17 St. 16 Min, 19 Dez 1915 Jahr
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~ 109 years ago
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