| All Patents in class 451/344 |
Patents 1 -
10
of 38
      |
| Picture | Number | Date | Patentee | Title |
 | 220,290 | Oct. 07, 1879 | J.M. Hunter | Improvement in stocks for grinding and drilling tools |
 | 791,301 | May 30, 1905 | F. Stahl | Saw-gumming machine |
| | 809,822 | Jan. 09, 1906 | C.H. Lawton | Holder for Rotary Tool Operating Machines |
| | 900,149 | Oct. 06, 1908 | C.W. Danglemeyer | Portable Milling Machine |
| | 972,446 | Oct. 11, 1910 | G.F. Hall | Floor dressing machine |
 | 1,090,602 | Mar. 17, 1914 | E.I. Dodds | Power-operated hand planer or smoother |
| | 1,209,594 | Dec. 19, 1916 | A.H. Kling | Axle Truing Device |
 | 1,210,145 | Dec. 26, 1916 | L.V. Calhoun | Folding grindstone-frame |
 | 1,223,359 | Apr. 24, 1917 | J.O. Berg | Tool for treating stone, concrete and other materials |
 | 1,229,401 | Jun. 12, 1917 | S.D. Black, A.G. Decker | Drill gearing |
