| Patents for James H. Layman |
Patents 16 -
30
of 92
      |
| Number | Date | Patentee | Title | Type |
| 57,506 | Aug. 28, 1866 | H. Herbert | Improvement in Pipe-Tongs | pipe tongs |
| 59,745 | Nov. 20, 1866 | C. Hettrick, J.L. Haven | Bandelore | |
| 60,091 | Nov. 27, 1866 | W.W. Tice | Improved Moulder's Clamp | |
| 60,900 | Jan. 01, 1867 | T.J. Jolly | Improvement in machines for making wooden pickets | stick pointing machines |
| 61,080 | Jan. 08, 1867 | W.C. McGill | Improvement in cork-screws | mechanical cork extractors |
| 61,424 | Jan. 22, 1867 | J.L. Haven | Improved meat-cutter | butcher |
| 64,424 | May 07, 1867 | C.H. James | Improvement in tubes for steam generators | steam generators |
| D2,674 | Jun. 18, 1867 | G.P. Darrow | Design for a Plough-Clevis | clevises |
| D2,747 | Aug. 13, 1867 | J.L. Haven | Design for a blacksmith's drill | drill presses |
| 69,383 | Oct. 01, 1867 | M.L. Andrew | Improvement in rotary engines | rotary steam engines |
| 70,771 | Nov. 12, 1867 | C.L. Zeidler | Improvement in mortising machines | mortising machines |
| 70,788 | Nov. 12, 1867 | T. Birch, A. Sowden | Improvement in grinding machine for circular saws | making sawblades |
| 71,531 | Nov. 26, 1867 | O.H. Perry | Molding and sawing machine | molders |
| 72,608 | Dec. 24, 1867 | C.M. Currey | Improvement in mechanical movement | woodworking machine mechanisms |
| 72,648 | Dec. 24, 1867 | D. Lewers | Improvement in stave-machine | barrel making machines |
