| Patents for Charles D. McDonald |
Patents 16 -
28
of 28
      |
| Number | Date | Patentee | Title | Type |
| 1,235,216 | Jul. 31, 1917 | C.D. McDonald | Sectional scroll-edged shearing-die | |
| 1,408,617 | Mar. 07, 1922 | C.D. McDonald, C.E. Ennes | Can-end-feeding mechanism | can making machines |
| 1,448,807 | Mar. 20, 1923 | C.D. McDonald, J.E. McCullough | Die-press mechanism | |
| 1,598,919 | Sep. 07, 1926 | C.D. McDonald | Metal-shearing machine | |
| 1,633,340 | Jun. 21, 1927 | C.D. McDonald | Automatic die press | |
| 1,663,018 | Mar. 20, 1928 | C.D. McDonald | Automatic die press | |
| 1,663,019 | Mar. 20, 1928 | C.D. McDonald | Automatic die-press-stopping mechanism | |
| 1,663,020 | Mar. 20, 1928 | C.D. McDonald | Automatic press-stopping mechanism | |
| 1,666,942 | Apr. 24, 1928 | C.D. McDonald | Automatic die-press stopping mechanism | |
| 1,694,132 | Dec. 04, 1928 | C.D. McDonald | Can-testing machine | can making machines |
| 1,719,230 | Jul. 02, 1929 | C.D. McDonald | Thread-rolling machine | |
| 1,813,810 | Jul. 07, 1931 | C.D. McDonald, B.A. Deisch | Can end | can making machines |
| 1,819,431 | Aug. 18, 1931 | C.D. McDonald | Apparatus for forming scroll-edge metal blanks | |
