| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Ervin S. Mummert | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 890,848 | Jun. 16, 1908 | E.S. Mummert, J.O. Dixon | Screw Threading Machine | metal threading machines | |
| 987,589 | Mar. 21, 1911 | E.S. Mummert | Grinding Machine for Sharpening Edged Tools | sharpening machines | |
| 1,191,813 | Jul. 18, 1916 | J.O. Dixon, E.S. Mummert | Facing-tool | ||
| 1,643,347 | Sep. 27, 1927 | E.S. Mummert | Wire loom | ||
| 1,801,103 | Apr. 14, 1931 | E.S. Mummert | Sump-drain pump | ||
| 2,132,640 | Oct. 11, 1938 | E.S. Mummert | Grinding machine | ||