| Patents for Albert H. Dall |
Patents 1 -
10
of 44
      |
| Picture | Number | Date | Patentee | Title |
| | 1,952,423 | Mar. 27, 1934 | H. Ernst, A.H. Dall | Grinding Machine |
| | 1,954,442 | Apr. 10, 1934 | H. Ernst, A.H. Dall | Grinding Machine |
| | 1,961,514 | Jun. 05, 1934 | A.H. Dall, H. Ernst | Automatic Lubricator |
| | 1,989,611 | Jan. 29, 1935 | B. Sassen, A.H. Dall | Wave Screw |
| | 1,993,831 | Mar. 12, 1935 | A.H. Dall | Apparatus for Producing Surfaces of Revolution Eccentric to One Another |
| | 2,142,021 | Dec. 27, 1938 | A.H. Dall, H. Ernst | Automatic Dynamic Balancer for Machine Tools |
| | 2,160,777 | May 30, 1939 | H. Ernst, A.H. Dall | Journal Bearing |
| | 2,160,778 | May 30, 1939 | H. Ernst, A.H. Dall | Bearing |
| | 2,170,494 | Aug. 22, 1939 | A.H. Dall, H. Ernst | Grinding Machine |
| | 2,171,208 | Aug. 29, 1939 | F.S. Haas, A.H. Dall | High Speed Spindle Construction |
