| Patents for C. Spengel |
Patents 1 -
15
of 24
      |
| Number | Date | Patentee | Title | Type |
| 541,952 | Jul. 02, 1895 | B.J. Spilker | Miter chopper | miter machines |
| 544,569 | Aug. 13, 1895 | H. Dreses | Metal Shaping Machine | |
| 595,354 | Dec. 14, 1897 | B.J. Spilker | Mixer | food and drink mixers |
| 629,899 | Aug. 01, 1899 | J.H. Flynn | Guide-pulley | drill presses |
| 655,482 | Aug. 07, 1900 | C.E. Francis | Glue-spreader | gluing machines |
| 682,810 | Sep. 17, 1901 | L.F. Parks | Gaining cutter-head | sawblades |
| 712,537 | Nov. 04, 1902 | C.S. Hisey | Electric grinding device | handheld power tools |
| 754,547 | Mar. 15, 1904 | J. Desmond | Throttle-Valve | valves |
| 755,542 | Mar. 22, 1904 | A.B. Probasco | Splicing-Tool | |
| 775,372 | Nov. 22, 1904 | G. Langen | Counter-shaft with changeable speed | metalworking variable speed mechanisms |
| 776,422 | Nov. 29, 1904 | J. Powell | Lubricator | oil cups |
| 812,362 | Feb. 13, 1906 | J. Powell | Construction of Oil Cups | oil cups |
| 814,039 | Mar. 06, 1906 | H.A. Hamilton | Combinaton Tool | combination saws |
| 824,882 | Jul. 03, 1906 | J. Powell | Grease Cup | grease cups |
| D38,945 | Dec. 10, 1907 | E.F. Smith | Design for a housing for electric drills | handheld power drills |
