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| Patents Granted on 1973-04-03 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,724,291 | Apr. 03, 1973 | F.M. Goebel | Positioning Apparatus | metal lathe mechanisms | |
| 3,724,965 | Apr. 03, 1973 | G.C. Green | Double Bladed Cutting Tool | drilling and boring tool holders | |
| 3,725,634 | Apr. 03, 1973 | K.H. Lane | Method of Forming T-slots in a Machine Tool Table | metalworking machine mechanisms | |