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17 h 16 m, 19 dez 1915 ano - 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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Warren Steel

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17 h 16 m, 19 dez 1915 ano
Agora
~ 109 years ago
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