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| All Patents in class 474/138 | |||||
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| Number | Date | Patentee | Title | Type | |
| 979,918 | Dec. 27, 1910 | J.R. Vincer, J.S. Barnes | Gearing for Drilling Machines | industrial machine gearing | |
| 2,463,437 | Mar. 01, 1949 | E.C. Steiner | Adjustable band-saw wheel mounting means | bandsaws | |