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| Patents for Hill Acme Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,611,783 | Oct. 12, 1971 | E. Mittelmann | Electromagnetically energized impact forming device | forging machines | |
| 3,611,848 | Oct. 12, 1971 | C.V. Gegg, H.W. Sullivan | Tube-cutting machine | ||
| 3,779,116 | Dec. 18, 1973 | A.C. McDaniel, Jr., W. I.Curtis | Shearing apparatus | metal shearing machines | |
| 3,831,779 | Aug. 27, 1974 | W.I. Curtis | Bar sorter | metalworking machine mechanisms | |