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| Patents for Willard Stearns | |||||
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| Number | Date | Patentee | Title | Type | |
| 177,851 | May 23, 1876 | P.H. Kells | Improvement in brick and tile machines | manufacturing bricks and tiles | |
| RE8,127 | Mar. 19, 1878 | P.H. Kells | Improvement in brick-machines | brick and tile making machines | |