| All Patents in class 223/20 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 61,814 | Feb. 05, 1867 | M.S. Drake | Improvement in machines for pouncing hats | milliner |
| 159,912 | Feb. 16, 1875 | R. Eickemeyer | Improvement in machines for pouncing hats | |
| RE6,858 | Jan. 11, 1876 | M.S. Drake | Improvement in machines for pouncing hats | |
| 202,529 | Apr. 16, 1878 | R. Eickemeyer | Improvement in hat-pouncing machines | milliner |
| 240,311 | Apr. 19, 1881 | R. Eickemeyer | Hat Pouncing Machine | hat making machines |
| 415,243 | Nov. 19, 1889 | R. Eickemeyer | Hat-pouncing machine | |
| 421,514 | Feb. 18, 1890 | C.H. Reid | Hat Finishing Lathe | milliner |
| 480,098 | Aug. 02, 1892 | J.B. Howe | Machine for Pouncing Hats | hat making machines |
| 558,810 | Apr. 21, 1896 | J.B. Howe | Hat Finishing Lathe | hat making machines |
| 565,158 | Aug. 04, 1896 | R. Eickemeyer | Hat or felt pouncing machine | |
| 573,856 | Dec. 29, 1896 | G.E. Brush | Machine for Pouncing Crowns of Hats | hat making machines |
| 578,214 | Mar. 02, 1897 | T.E. Keavy | Sandpapering and buffing machine | sanding machines |
