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| Patents Granted on 1956-05-15 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,745,229 | May 15, 1956 | S.G. Brady | Liquid Cooled Grinder Wheel | grinder wheels | |
| 2,745,306 | May 15, 1956 | W.V. Schmidt | Adjustable Tool Holder | lathe tool holders and tool posts | |
| 2,745,319 | May 15, 1956 | W.F. Sawyer | Cam Milling Attachment for Milling Machines | milling machines | |
| 2,745,446 | May 15, 1956 | H.E. Cullen, A.J. Deiry | Quickly adjustable machine for ripping lumber into selected widths | circular ripsaws | |