| Patents for James H. Layman |
Patents 31 -
45
of 88
      |
| Number | Date | Patentee | Title | Type |
| 78,919 | Jun. 16, 1868 | A.P. Bonte | Elliptical lathe | wood lathes |
| 81,480 | Aug. 25, 1868 | G.P. Darrow | Improvement in cast nuts | |
| 85,819 | Jan. 12, 1869 | J.L. Haven | Improvement in grindstone-journal boxes | bench or pedestal grinders |
| D3,412 | Mar. 23, 1869 | J.L. Haven | Design for a barn-door hanger | |
| RE3,623 | Aug. 31, 1869 | P.P. Lane | Improvement in self-lubricating journal-boxes | woodworking power transmission |
| D3,785 | Dec. 14, 1869 | G. Johnson (Administrator), G.P. Darrow | Design For A Plow-Clevis | clevises |
| 98,803 | Jan. 11, 1870 | H.S. Ross | Improvement in vise for holding saws while being sharpened | saw vises |
| 103,474 | May 24, 1870 | V. Knecht | Improved pulley-sheave | industrial machine pulleys and belt drive mechanisms |
| 111,259 | Jan. 24, 1871 | C. Schleicher | Improvement in lath-machines | lath making machines |
| 112,788 | Mar. 21, 1871 | J. Creager | Improvement in sawing-machine tables | tablesaws |
| D4,922 | May 23, 1871 | H.L. Fry | Design for chain-pumps | |
| D4,924 | May 23, 1871 | J.L. Haven | Design for a housing-plate | |
| D4,945 | May 30, 1871 | H.L. Fry | Design for a chain-pump | |
| D5,148 | Aug. 01, 1871 | J.L. Haven | Design for a caster | |
| 118,699 | Sep. 05, 1871 | W.H. Doane | Improvement in canals | |
