| Patents for Bullard Co. |
Patents 16 -
30
of 177
      |
| Number | Date | Patentee | Title | Type |
| 1,864,307 | Jun. 21, 1932 | E.H. Johnson | Chip Remover and Water and Dust Seal for Machine Tools | chip or swarf removers |
| 1,867,527 | Jul. 12, 1932 | T.E. Dunn | Process for Anodic Removal of Surface Metal Film | |
| 1,898,765 | Feb. 21, 1933 | T.E. Dunn | Electrocleaning Process | |
| 1,899,608 | Feb. 28, 1933 | E.C. Bullard | Metal Working | sheet metal bending machines |
| 1,917,022 | Jul. 04, 1933 | T.E. Dunn | Electrochemical Process for Cleaning Metal | |
| 1,919,624 | Jul. 25, 1933 | T.E. Dunn, D.B. Lake, E.T. Youd | Chrome Scale Softening Process | |
| 1,938,310 | Dec. 05, 1933 | G.R. Appelberg, D.B. Bullard | Spindle Drive for Machine Tools | multiple spindle machines |
| 1,938,319 | Dec. 05, 1933 | K.H. Conley | Means for Controlling Gear Shifting Mechanism | metalworking speed changing mechanisms |
| 1,947,957 | Feb. 20, 1934 | J.R. Tillman | Workholder | metalworking machine work holding |
| 1,954,473 | Apr. 10, 1934 | T.E. Dunn | Electrochemical Process for Removing Scale and Oxide from the Surface of Stainless Steel | |
| 1,958,844 | May 15, 1934 | D.B. Bullard | Drilling Attachment | drill press accessories |
| 1,960,296 | May 29, 1934 | E.C. Bullard | Machine Tool Control Mechanism | metalworking speed changing mechanisms |
| 1,970,276 | Aug. 14, 1934 | E.P. Bullard | Unit Spindle Bearing Assembly | metalworking machine bearings |
| 1,970,277 | Aug. 14, 1934 | E.C. Bullard | Headstock Unit | |
| 1,984,052 | Dec. 11, 1934 | D.B. Bullard | Machine Tool Driving Connection | |
