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| Patents Granted on 1964-04-21 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,129,613 | Apr. 21, 1964 | J.L. Burg | Reciprocating feed device for machine tools | drill presses | |
| 3,129,823 | Apr. 21, 1964 | G.A. Bilocq | Centering mechanism for paper rolls and the like | ||