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