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| Patents Granted on 1939-03-28 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,151,716 | Mar. 28, 1939 | M.C. Putnam | Wood Joint Fastener | nails | |
| 2,151,852 | Mar. 28, 1939 | H.L. Johnston | Food handling apparatus | ||
| 2,151,862 | Mar. 28, 1939 | J.C. Slager, D.A. Meeker | Food handling apparatus | ||
| 2,152,302 | Mar. 28, 1939 | J.F. Buhr | Lock for Tool Holders | drill press accessories | |
| 2,152,563 | Mar. 28, 1939 | J.P. Palmer, R.W. Palmer | Slip Locking Pivot | pliers | |