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| Patents for William H. Field Co., Inc. | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,754,634 | Jul. 17, 1956 | W.F. French | Tooth rests for cutter grinders | cutter grinding | |
| 2,787,094 | Apr. 02, 1957 | W.F. French | Cutter grinders | cutter grinding | |