| Patents for Greenfield Tap & Die Corp. |
Patents 1 -
10
of 14
      |
| Picture | Number | Date | Patentee | Title |
 | 871,451 | Nov. 19, 1907 | A.J. Smart | Screw-cutting die and holder therefor |
 | 956,208 | Apr. 26, 1910 | E.F. Smith | Grinding-machine |
 | 965,970 | Aug. 02, 1910 | F.O. Wells | Tap Wrench |
 | 966,105 | Aug. 02, 1910 | J.P. Lavigne | Automatic die-head |
 | 1,038,967 | Sep. 17, 1912 | W. Russell | Tap-wrench |
 | 1,048,921 | Dec. 31, 1912 | F.E. Wells | Die-blank |
 | 1,052,313 | Feb. 04, 1913 | A.B. Carll | Pipe-wrench |
 | 1,061,129 | May 06, 1913 | C.C. Russell | Screw-plate |
 | 1,074,466 | Sep. 30, 1913 | C.C. Russell | Screw-plate |
 | 1,130,542 | Mar. 02, 1915 | W. Russell | Screw-cutting die |
