| Patents for Howard F. MacMillin |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 1,700,565 | Jan. 29, 1929 | H.F. MacMillin, W. Ernst | Laminated Curb | liquid extracting machines |
| 1,799,140 | Mar. 31, 1931 | H.F. MacMillin, E.R. Darling | Manufacture of Pectin Solution From Apple Pomace | making pectin |
| 1,870,500 | Aug. 09, 1932 | H.F. MacMillin, W. Ernst | Hydraulic Press | hydraulic presses |
| 1,884,060 | Oct. 25, 1932 | H.F. MacMillin | Hydraulic Press | hydraulic presses |
| 1,895,710 | Jan. 31, 1933 | H.F. MacMillin, W. Ernst | Hydraulic Press | hydraulic presses |
| 1,899,678 | Feb. 28, 1933 | R. Thoreson, H.F. MacMillin, W. Ernst | Hydraulic Press | hydraulic presses |
| 1,937,192 | Nov. 28, 1933 | H.F. MacMillin, W. Ernst | Control Mechanism for Hydraulic Motors | hydraulic motor controls |
| 1,964,245 | Jun. 26, 1934 | H.F. MacMillin, E.K. Benedek | Constant Delivery Radial Piston Pump | hydraulic pumps |
| 2,014,162 | Sep. 10, 1935 | H.F. MacMillin, E. Benedek | Hydraulic Press | hydraulic presses |
