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| Patents for Alfred Hitchcock | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 150,625 | May 05, 1874 | J.A. Ferson, G.F. Simonds | Tempering and Forming Articles of Steel | |
 | 151,167 | May 19, 1874 | G.F. Simonds | Improvement in Tempering Ovens for Steel and Iron | |