| All Patents in class 384/191.2 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 1,252 | Jul. 17, 1839 | I. Babbitt | Mode of making boxes for axles and gudgeons | railroad car axles |
| AI33 | Sep. 04, 1840 | I. Babbitt | Axle and gudgeon box | industrial machine mechanisms |
| 128,002 | Jun. 18, 1872 | D. Whitlock | Improvement in journal-boxes | industrial machine bearings |
| 152,277 | Jun. 23, 1874 | D.C. Clough | Improvement in journal-bearings | industrial machine bearings |
| 330,389 | Nov. 17, 1885 | P.P. Emory | Journal Brass | railroad car axle bearings |
| 1,692,439 | Nov. 20, 1928 | E.A. Hall | Grinding Tool | |
