| Patents Granted on 1937-04-20 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| CA-365,554 | Apr. 20, 1937 | T.G. Louis, K.A. Harmon | Magneto | ignition systems |
| 2,077,408 | Apr. 20, 1937 | A.F. Bennett, B.P. Graves | Machine Tool | metalworking machine mechanisms |
| 2,077,435 | Apr. 20, 1937 | F.A. Parsons | Machine Tool Transmission and Control | milling machines |
| 2,077,509 | Apr. 20, 1937 | A.N. Blum | Saw Handle | saw handles |
| 2,077,730 | Apr. 20, 1937 | W.F. Zimmermann | Balanced Helicoidal Change Speed Drive for Shapers | metal shapers |
| 2,077,828 | Apr. 20, 1937 | B.S. Dombrowski | Ruler | rules |
| 2,077,865 | Apr. 20, 1937 | D.D. Wile | Refrigerating System | refrigeration apparatus |
| 2,077,880 | Apr. 20, 1937 | R.J. Gits | Lubricating Mechanism | industrial machine lubrication |
| 2,077,881 | Apr. 20, 1937 | R.J. Gits | Oil Seal | shaft seals |
| 2,077,894 | Apr. 20, 1937 | I. Patrick | Surge control valve for hydraulic presses | hydraulic metalworking presses |
| 2,078,192 | Apr. 20, 1937 | R.G. Ellis, J.F. Buhr | Tool Holder | drill press accessories |
