| Patents for Charles D. McDonald |
Patents 1 -
10
of 28
      |
| Picture | Number | Date | Patentee | Title |
 | 834,069 | Oct. 23, 1906 | C.B. McDonald, C.D. McDonald | Can-soldering machine |
 | 877,358 | Jan. 21, 1908 | C.D. McDonald | Can-heading machine |
 | 945,573 | Jan. 04, 1910 | C.B. McDonald, C.D. McDonald | Can-testing machine |
| | 970,092 | Sep. 13, 1910 | C.D. McDonald | Automatic die-press |
| | 1,039,565 | Sep. 24, 1912 | C.D. McDonald | Metal-working machine |
| | CA-147,087 | Apr. 08, 1913 | C.D. McDonald | Metal working machine |
| | 1,110,810 | Sep. 15, 1914 | C.D. McDonald | Metal-shearing machine |
| | 1,121,271 | Dec. 15, 1914 | C.D. McDonald, C.E. Ennes | Die-press mechanism or the like |
| | 1,141,644 | Jun. 01, 1915 | C.D. McDonald | Metal-shearing machine |
| | 1,169,332 | Jan. 25, 1916 | C.D. McDonald | Metal-shearing machine |
