| Patents for Albert M. Johnson |
Patents 1 -
15
of 53
      |
| Number | Date | Patentee | Title | Type |
| 1,617,910 | Feb. 15, 1927 | A.M. Johnson | Drilling machine and the like | drill presses |
| 1,668,647 | May 08, 1928 | A.M. Johnson | Feed mechanism for drilling machines | drill presses |
| 1,679,529 | Aug. 07, 1928 | A.M. Johnson | Automatic machine tool | tapping machines |
| 1,679,530 | Aug. 07, 1928 | A.M. Johnson | Automatic drilling or tapping machine | drill presses |
| 1,679,531 | Aug. 07, 1928 | A.M. Johnson | Gang machine tool | multiple spindle drill presses |
| 1,727,984 | Sep. 10, 1929 | A.M. Johnson | Spindle sleeve for drilling machines | drill presses |
| 1,732,558 | Oct. 22, 1929 | A.M. Johnson | Automatic facing tool for drilling machines and the like | nut or bolt making machines |
| 1,732,559 | Oct. 22, 1929 | A.M. Johnson | Machine-tool feed | nut or bolt making machines |
| 1,732,560 | Oct. 22, 1929 | A.M. Johnson | Honing machine | honing machines |
| 1,735,400 | Nov. 12, 1929 | A.M. Johnson | Tool-spindle brake mechanism | drill presses |
| 1,735,401 | Nov. 12, 1929 | A.M. Johnson | Band-brake stop for drill feed shafts | drill presses |
| 1,779,674 | Oct. 28, 1930 | A.M. Johnson | Rotary work support | tapping machines |
| 1,782,573 | Nov. 25, 1930 | A.M. Johnson | Machine tool | multiple spindle drill presses |
| 1,783,019 | Nov. 25, 1930 | A.M. Johnson | Honing machine | honing machines |
| 1,838,945 | Dec. 29, 1931 | A.M. Johnson | Automatic machine tool | nut or bolt making machines |
