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| Patents Granted on 1975-04-22 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,878,706 | Apr. 22, 1975 | G.C. Berry, H.E. Keithley | Knockout arrangement for presses | metalworking presses | |
| 3,879,096 | Apr. 22, 1975 | L. Blodee | Cabinet systems with tension rods as frame members | ||