| All Patents in class 29/38R |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 203,946 | May 21, 1878 | C.D. Rodgers | Metal Screw Machine | screw machines |
| 874,035 | Dec. 17, 1907 | G.G. Prentice | Multiple-spindle automatic turret-machine | turret lathes |
| 1,063,681 | Jun. 03, 1913 | J. Hartness | Metal Working Machine | multiple spindle lathes |
| 1,254,753 | Jan. 29, 1918 | C.H. Whipple | Machine for Manufacturing Twist Drills & Other Articles | making drills and augers |
| 1,382,340 | Jun. 21, 1921 | E.P. Bullard, Jr. | Controling Means for Machine Tools | machine tool controls |
| 1,449,464 | Mar. 27, 1923 | J.J. Van Hamersveld | Automatic Machine Tool | multiple spindle lathes |
| 1,464,062 | Aug. 07, 1923 | L.G. Daniels | Automatic Multiple-Spindle Metal-Working Machine | multiple spindle machines |
| 1,628,061 | May 10, 1927 | C.M. Petersen | Multiple-Spindle Metal-Turning Machine | multiple spindle machines |
| 1,635,702 | Jul. 12, 1927 | E.P. Bullard, Jr. | Cutting Compound Distribution System | coolant apparatus |
| 1,911,632 | May 30, 1933 | A.J. Lewis | Multiple Chucking Machine | multiple spindle machines |
| 1,924,594 | Aug. 29, 1933 | C.W. Goodrich, L.H. Blood | Combined Automatic Machine Tool | milling machines |
| 1,958,844 | May 15, 1934 | D.B. Bullard | Drilling Attachment | drill press accessories |
| 2,086,837 | Jul. 13, 1937 | G.R. Appelberg | Stroke Control Adjustment for Machine Tools | |
| 2,086,838 | Jul. 13, 1937 | G.R. Appelberg | Double Index Mechanism | |
| 2,269,908 | Jan. 13, 1942 | H.J. Siekmann, W.F. Groene | Multiple Spindle Indexing Crankshaft Lathe | crankshaft lathes |
