Patents for Albert M. Johnson |
Patents 16 -
30
of 53
|
Number | Date | Patentee | Title | Type |
1,838,995 | Dec. 29, 1931 | W.M. Fairbairn, A.M. Johnson | Spindle feed mechanism for machine tools | nut or bolt making machines |
1,872,746 | Aug. 23, 1932 | A.M. Johnson | Honing machine | honing machines |
1,877,881 | Sep. 20, 1932 | A.M. Johnson | Honing machine | honing machines |
1,909,766 | May 16, 1933 | W.M. Fairbairn, A.M. Johnson | Machine tool | tapping machines |
1,909,767 | May 16, 1933 | W.M. Fairbairn, A.M. Johnson | Machine tool | tapping machines |
1,917,842 | Jul. 11, 1933 | A.M. Johnson | Drilling machine spindle | drill presses |
1,922,246 | Aug. 15, 1933 | A.M. Johnson | Machine tool | honing machines |
1,942,927 | Jan. 09, 1934 | C.O. Holland, A.M. Johnson | Hydraulically actuated indexing mechanism | indexers and dividers |
1,945,044 | Jan. 30, 1934 | W.M. Fairbairn, A.M. Johnson | Honing machine | honing machines |
1,945,045 | Jan. 30, 1934 | A.M. Johnson | Honing machine | honing machines |
1,948,115 | Feb. 20, 1934 | A.M. Johnson | Fluid pressure feed for drilling machine | drill presses |
2,044,076 | Jun. 16, 1936 | A.M. Johnson | Skip-stop control mechanism | honing machines |
2,083,023 | Jun. 08, 1937 | W.M. Fairbairn, A.M. Johnson | Machine tool | multiple spindle drill presses |
2,083,194 | Jun. 08, 1937 | A.M. Johnson | Honing machine | honing machines |
2,106,216 | Jan. 25, 1938 | A.M. Johnson | Honing machine | honing machines |