| Patents for John W. Boynton |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 491,521 | Feb. 14, 1893 | J.W. Boynton | Tail Stock for Milling Machines | milling machine accessories |
| 495,296 | Apr. 11, 1893 | J.W. Boynton | Speed Regulating Device for Lathes | metalworking speed changing mechanisms |
| 525,781 | Sep. 11, 1894 | J.W. Boynton | Mechanism for Taking Up Lost Motion | metalworking machine mechanisms |
| 650,924 | Jun. 05, 1900 | J.W. Boynton | Inserted Tooth Milling Cutter | milling machine cutters |
| 1,052,605 | Feb. 11, 1913 | S. MacKay | Grinding Machine | sharpening machines |
| 1,052,649 | Feb. 11, 1913 | J.W. Boynton | Grinding Machine | sharpening machines |
| 1,079,420 | Nov. 25, 1913 | S. MacKay | Method of Adjusting Rotary Cutters | sharpening machines |
| 1,290,497 | Jan. 07, 1919 | J.W. Boynton | Hacksaw-Machine | power hacksaws |
