| All Patents in class 221 |
Patents 16 -
30
of 119
      |
| Number | Date | Patentee | Title | Type |
| 342,268 | May 18, 1886 | W.S. Doig, T.L. Smith | Box-nailing machine | nailing machines |
| 394,170 | Dec. 11, 1888 | C.H. Graham | Blank Feeder and Gripping Die for Bolt Turning Machines | nut or bolt making machines |
| 409,145 | Aug. 13, 1889 | L.F. Grammes | Box-nailing machine | nailing machines |
| 427,920 | May 13, 1890 | D.B. Shantz | Lathe for Turning Buttons | button making machinery |
| 445,696 | Feb. 03, 1891 | E.L. Bowers, W.L. Grout | Gripping Device for Lathes | metal lathe accessories and attachments |
| 445,697 | Feb. 03, 1891 | E.L. Bowers, W.L. Grout | Gripping Device for Lathes | metal lathe accessories and attachments |
| 445,964 | Feb. 03, 1891 | J.H. Morrison | Spool-lathe feeder | spool or bobbin machines |
| 447,144 | Feb. 24, 1891 | J.B. Clyne | Automatic Feed Mechanism for Chucks | workpiece changers and storage mechanisms |
| 479,173 | Jul. 19, 1892 | J.M. Parker | Spool-boring mechanism | drilling and boring |
| 489,547 | Jan. 10, 1893 | R.J. Shipley | Punching and riveting machine | metal punching machines |
| 543,683 | Jul. 30, 1895 | J.J. Hayes | Feeder for Nailing Machines | nail making machines |
| 549,190 | Nov. 05, 1895 | W.R. Fox | Rivet-making machine | |
| 553,872 | Feb. 04, 1896 | A.H. Roovers, A.W. Roovers | Vending instrument | |
| 579,357 | Mar. 23, 1897 | J.W. Brown, Jr. | Automatic Chucking Lathe | automatic lathes |
| 584,987 | Jun. 22, 1897 | D.H. Church | Drilling Machine | horizontal drilling machines |
