Patents for Albert M. Johnson |
Patents 1 -
10
of 53
      |
Picture | Number | Date | Patentee | Title |
| 1,617,910 | Feb. 15, 1927 | A.M. Johnson | Drilling machine and the like |
| 1,668,647 | May 08, 1928 | A.M. Johnson | Feed mechanism for drilling machines |
| 1,679,529 | Aug. 07, 1928 | A.M. Johnson | Automatic machine tool |
| 1,679,530 | Aug. 07, 1928 | A.M. Johnson | Automatic drilling or tapping machine |
| 1,679,531 | Aug. 07, 1928 | A.M. Johnson | Gang machine tool |
| 1,727,984 | Sep. 10, 1929 | A.M. Johnson | Spindle sleeve for drilling machines |
| 1,732,558 | Oct. 22, 1929 | A.M. Johnson | Automatic facing tool for drilling machines and the like |
| 1,732,559 | Oct. 22, 1929 | A.M. Johnson | Machine-tool feed |
| 1,732,560 | Oct. 22, 1929 | A.M. Johnson | Honing machine |
| 1,735,400 | Nov. 12, 1929 | A.M. Johnson | Tool-spindle brake mechanism |