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| Patents for Campbell Ernst Waller | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,768,478 | Oct. 30, 1956 | C.E. Waller | Pattern Controlled Cutter Grinder | tool grinders | |
| 2,774,642 | Dec. 18, 1956 | C.E. Waller | Adjustable Table for Milling Machines | ||
| 2,840,958 | Jul. 01, 1958 | C.E. Waller | Automatic Cutter Grinder | tool grinders | |
| 2,885,766 | May 12, 1959 | C.E. Waller, H. Ernst | Face Milling Cutter | milling machine cutters | |
| 2,885,910 | May 12, 1959 | C.E. Waller | Automatic Indexing Mechanism | indexers and dividers | |