| Patents for Charles D. McDonald |
Patents 1 -
15
of 28
      |
| Number | Date | Patentee | Title | Type |
| 834,069 | Oct. 23, 1906 | C.B. McDonald, C.D. McDonald | Can-soldering machine | can making machines |
| 877,358 | Jan. 21, 1908 | C.D. McDonald | Can-heading machine | can making machines |
| 945,573 | Jan. 04, 1910 | C.B. McDonald, C.D. McDonald | Can-testing machine | can making machines |
| 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 | |
| 1,169,333 | Jan. 25, 1916 | C.D. McDonald | Metal-shearing machine | |
| 1,174,747 | Mar. 07, 1916 | C.D. McDonald | Metal-shearing machine | |
| 1,202,546 | Oct. 24, 1916 | C.D. McDonald | Process for forming scroll-edge metal blanks | |
| CA-174,679 | Jan. 23, 1917 | C.D. McDonald | Sheet metal blank production | |
| 1,227,162 | May 22, 1917 | C.D. McDonald | Metal-shearing machine | |
