| All Patents in class 15/23 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
| | 128,290 | Jun. 25, 1872 | R. Dimes | Improvement in Processes and Apparatus for Stippling Metallic Surfaces |
| | 595,731 | Dec. 21, 1897 | M.B. Pengnet | Electric motor |
| | 1,260,080 | Mar. 19, 1918 | J.W. Singer | Cylinder Grinder |
 | 1,407,381 | Feb. 21, 1922 | A.A. Clarke | Surface-treating tool |
 | 1,422,067 | Jul. 11, 1922 | W.A. Abegg | Socket Wrench |
 | 1,648,888 | Nov. 15, 1927 | F.E. Aurand | Portable surface-cleaning tool |
 | 2,069,700 | Feb. 02, 1937 | A.N. Emmons | Abrading machine |
 | 2,211,216 | Aug. 13, 1940 | J. Oster | Small power driven tool |
