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| Patents for DeVlieg Machine Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,516,889 | May 14, 1985 | R.M. Ortlieb | Precision adjustable cutting tool | metalworking machine mechanisms | |
| RE32,211 | Jul. 22, 1986 | R.A. Jerue, R.M. Ortlieb | Machine tool and method | horizontal boring mills | |