| All Patents of Type: sheet metal |
Patents 1 -
15
of 38
      |
| Number | Date | Patentee | Title | Type |
| 6,618X | Jul. 20, 1831 | E.M. Converse | Machinery for Manufacturing Tin Ware | sheet metal |
| 4,924 | Jan. 13, 1847 | A. Heaton | Spinning Sheet Metal | sheet metal |
| 5,389 | Dec. 11, 1847 | A.W. Whitney | Sheet-Metal Roller Tool | sheet metal |
| 7,836 | Dec. 17, 1850 | J.F. Flanders | Machinery for Cutting and Binding Sheet Metal | sheet metal |
| 16,337 | Jan. 06, 1857 | J.J. Laubach | Grooving Sheet-Metal | sheet metal |
| 31,347 | Feb. 05, 1861 | W.H. Beach | Improved Machine for Swaging Sheet Metal | sheet metal |
| 39,155 | Jul. 07, 1863 | G.R. Boynton, J.M. Le Count | Making Sap-Spiles | sap collecting apparatus |
| 46,261 | Feb. 07, 1865 | S. Pennock | Edging Sheet-Metal | sheet metal |
| 83,347 | Oct. 20, 1868 | P.A. Whitney, A.W. Whitney | Machine for Bending and Folding Sheet Metal | sheet metal |
| 124,123 | Feb. 27, 1872 | W.C. Eiseman | Improvement in Machines for Bending Metal | sheet metal |
| 144,691 | Nov. 18, 1873 | A.S. Munger | Seaming-Machines | sheet metal |
| 163,341 | May 18, 1875 | M. Stephens | Improvement in devices for connecting, holding, and punching sections of sheet-metal pipe | sheet metal |
| 186,004 | Jan. 09, 1877 | F.A. Gleason | Improvement in stove-pipe-elbow machines | sheet metal |
| 266,604 | Oct. 31, 1882 | O.W. Burritt | Double-seaming machine | sheet metal |
| 359,919 | Mar. 22, 1887 | J.K. Chace | Machine for Scouring Sheet Metal | sheet metal |
