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| Patents for Charles W. Frame | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,566,747 | Mar. 02, 1971 | C.W. Frame | Self-regulating expansion type control valve | drop hammers | |
| 4,653,300 | Mar. 31, 1987 | C.J. Crout, C.W. Frame, R.N. Harris | Adaptive, self-regulating forging hammer control system | drop hammers | |