| Patents for Harry F. Caldwell |
Patents 1 -
10
of 16
      |
| Picture | Number | Date | Patentee | Title |
 | 1,976,048 | Oct. 09, 1934 | H.B. Tuthill, H.F. Caldwell | Motor driven lathe head |
| | 2,095,620 | Oct. 12, 1937 | H.B. Tuthill, H.F. Caldwell | Bread slicing machine |
| | 2,143,460 | Jan. 10, 1939 | H.B. Tuthill, H.F. Caldwell | Knife adjustment in bread slicing machines |
| | 2,147,322 | Feb. 14, 1939 | H.B. Tuthill, H.F. Caldwell | Safety control for bread slicing machines |
| | 2,162,138 | Jun. 13, 1939 | H.B. Tuthill, H.F. Caldwell | Automatic bread slicing machine |
| | 2,170,312 | Aug. 22, 1939 | H.B. Tuthill, H.F. Caldwell | Combination bread slicing and wrapping machine |
| | 2,239,945 | Apr. 29, 1941 | H.B. Tuthill, H.F. Caldwell | Feeding and folding mechanism for wrapping machines |
| | 2,244,140 | Jun. 03, 1941 | H.F. Caldwell | Label attaching machine |
 | 2,310,719 | Feb. 09, 1943 | H.B. Tuthill, H.F. Caldwell | Wrapping machine |
 | 2,326,436 | Aug. 10, 1943 | H.F. Caldwell | Label attaching machine |
