| Patents for J. Henry Hill |
Patents 1 -
10
of 21
      |
| Picture | Number | Date | Patentee | Title |
 | 17,183 | Apr. 28, 1857 | M. Marshall | Method of reversing chisels of mortising-machines |
 | 20,407 | Jun. 01, 1858 | A.G. Coes | Improved Wrench or Pipe-Tongs for Turning or Revolving Cylindrical Bodies |
 | 28,157 | May 08, 1860 | A.G. Coes, L. Coes | Rolling The Shanks and Bars of Screw-Wrenches |
 | 29,360 | Jul. 31, 1860 | A.G. Coes, L. Coes | Machine for Heading Screw-Wrench Blanks |
 | 31,075 | Jan. 08, 1861 | A.G. Coes, L. Coes | Machine For Grinding Heads of Wrenches or Other Articles |
 | 43,364 | Jun. 28, 1864 | J. Edgecomb | Improvement in boring-machines |
 | RE1,852 | Jan. 17, 1865 | S.S. Bartlett | Improvement in mortising-machines |
 | 47,436 | Apr. 25, 1865 | C.B. Long | Improvement in Gear Cutting Rules |
 | 57,136 | Aug. 14, 1866 | C.B. Holden | Hand Punch |
 | 64,064 | Apr. 23, 1867 | S.F. Bond | Improvement in self-lubricating journal-box |
