| Patents for O. K. Tool Holder Co. |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 677,350 | Jul. 02, 1901 | C.W. Grant | Tool-holder | lathe tool holders and tool posts |
| 776,250 | Nov. 29, 1904 | J.X. Mathieu, J.F. Pullan | Adjustable tool-holder | lathe tool holders and tool posts |
| 788,206 | Apr. 25, 1905 | C.W. Grant | Tool-post | lathe tool holders and tool posts |
| 802,206 | Oct. 17, 1905 | C.W. Grant | Tool-holder | lathe tool holders and tool posts |
| 807,166 | Dec. 12, 1905 | C.W. Grant | Tool-holder and tool | lathe tool holders and tool posts |
| 810,307 | Jan. 16, 1906 | P.H. Robinson | Tool-holder | lathe tool holders and tool posts |
| 878,672 | Feb. 11, 1908 | P.H. Robinson | Tool Holder | lathe tools |
| 1,056,089 | Mar. 18, 1913 | P.H. Robinson, G.W. Conklin | Tool-holder | lathe tool holders and tool posts |
| 1,063,659 | Jun. 03, 1913 | G.W. Conklin | Milling-cutter | milling machine cutters |
