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| Patents Granted on 1949-04-12 | |||||
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| Number | Date | Patentee | Title | Type | |
| D153,407 | Apr. 12, 1949 | F.R. Weaver | Design for a Saw Handle | saw handles | |
| 2,466,814 | Apr. 12, 1949 | H.C. Kemper, R.K. Le Blond | Lathe Headstock Gear Shifting Mechanism | metalworking machine mechanisms | |
| 2,466,839 | Apr. 12, 1949 | H.J. Caldwell | Magnetic separator | ||
| 2,466,909 | Apr. 12, 1949 | G.W. Periman | Automatic clamp | ||