| Patents for Charles H. Luther Jr. |
Patents 1 -
10
of 24
      |
| Picture | Number | Date | Patentee | Title |
 | 359,943 | Mar. 22, 1887 | G.H. Smith | Attachment for Grinding Machines |
 | 441,997 | Dec. 02, 1890 | G.E. Whitehead | Grinding Machine |
 | 517,287 | Mar. 27, 1894 | E. Myers | Milling Machine |
 | 549,832 | Nov. 12, 1895 | C.A. Taft | Grinding Mechanism |
 | 557,302 | Mar. 31, 1896 | C. Chretien | Combination Square |
 | 557,445 | Mar. 31, 1896 | F. Spalding | Micrometer Gage |
 | 591,363 | Oct. 05, 1897 | F. Spalding | Calipers |
 | 597,335 | Jan. 11, 1898 | F. Spalding | Micrometer Depth Gage |
 | 626,876 | Jun. 13, 1899 | E.C. Thurston, F. Spalding | Micrometer Calipers |
 | 629,487 | Jul. 25, 1899 | J.T. Boufford | Floor Scraper |
