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| All Patents in class 29/898.13 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,269,832 | Jun. 18, 1918 | A.A. Martell | Method and Apparatus for Accurately Aligning Bearings | ||
| 1,269,833 | Jun. 18, 1918 | A.A. Martell | Connecting Rod Reamer and the Like | automotive tools | |
| 1,708,491 | Apr. 09, 1929 | C.R. Alden | Method of finishing ball bearings | industrial machine bearings | |