| All Patents in class 29/38A |
Patents 16 -
30
of 65
      |
| Number | Date | Patentee | Title | Type |
| 1,574,726 | Feb. 23, 1926 | E.P. Bullard, Jr. | Multiple Spindle Machine Tool | vertical boring mills |
| 1,586,066 | May 25, 1926 | E.P. Bullard, Jr. | Multiple Spindle Machine | vertical boring mills |
| 1,631,579 | Jun. 07, 1927 | E.P. Bullard, Jr. | Tool-Slide Mechanism | |
| 1,635,702 | Jul. 12, 1927 | E.P. Bullard, Jr. | Cutting Compound Distribution System | |
| 1,664,374 | Mar. 27, 1928 | L.G. Daniels | Multiple Spindle Machine | vertical boring mills |
| 1,690,567 | Nov. 06, 1928 | E.P. Bullard, Jr. | Power Chucking Device | |
| 1,696,027 | Dec. 18, 1928 | E.P. Bullard, Jr. | Automatic Multiple Spindle Lathe | multiple spindle lathes |
| 1,698,254 | Jan. 08, 1929 | E.P. Bullard, Jr. | Power Chuck | |
| 1,715,896 | Jun. 04, 1929 | E.P. Bullard, Jr. | Tool Slide | metalworking machine mechanisms |
| 1,782,138 | Nov. 18, 1930 | F.M. Davis, A.C. Hoeh | Continuously-operating multiple lathe | multiple spindle lathes |
| 1,804,971 | May 12, 1931 | E.P. Bullard, Jr. | Multiple Spindle Center Turning Machine | |
| 1,807,829 | Jun. 02, 1931 | E.P. Bullard, Jr. | Double Angular Tool Slide | |
| 1,835,591 | Dec. 08, 1931 | E.P. Bullard | Automatic Work Feeding and Chucking Means for Multiple Spindle Lathes | |
| 1,845,478 | Feb. 16, 1932 | E.P. Bullard, Jr. | Automatic Multiple Spindle Center Turning Machine | |
| 1,864,307 | Jun. 21, 1932 | E.H. Johnson | Chip Remover and Water and Dust Seal for Machine Tools | |
