| Patents for Charles Schroeder |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 463,836 | Nov. 24, 1891 | J. Hunzinger | Wood-carving machine | carving machines |
| 484,984 | Oct. 25, 1892 | F. Wesel | Machine for cutting printers' rules and leads | |
| 490,401 | Jan. 24, 1893 | H.A. Schneekloth | Punching, shearing, and forging machine | metal punching machines |
| 496,123 | Apr. 25, 1893 | W.L. Keuffel | Zig Zag Rule | folding rule joints |
| 512,780 | Jan. 16, 1894 | F. Wesel | Printer's proof-press | printing presses |
| 521,265 | Jun. 12, 1894 | R. Haberthur | Combined Wrench and Pipe and Thread Cutter | |
