| Patents Granted on 1952-04-01 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| CA-482,193 | Apr. 01, 1952 | J.O. Olsen, J.N. Petre | Mandrins | |
| 2,590,992 | Apr. 01, 1952 | J. McEwan | Saw sharpener | saw sharpening machines |
| 2,591,268 | Apr. 01, 1952 | R.K. Blond, H.C. Kemper | Milling machine transmission control mechanism | milling machines |
| 2,591,353 | Apr. 01, 1952 | K.A. Harmon, G.A. Guernsey | Make-before-break double-pole switch | electric switches |
| 2,591,411 | Apr. 01, 1952 | Q.C. Delsman, K.L. Surfus | Forage blower with pivoted feed trough | |
| 2,591,452 | Apr. 01, 1952 | M. Maag | Internal Dimension Gauge | measurement gauges |
| 2,591,453 | Apr. 01, 1952 | M. Maag | External Caliper with Demountable Frame | measurement gauges |
| 2,591,581 | Apr. 01, 1952 | C.H. Millerwise | Trip and Reset Mechanism for Float Operated Liquid Fuel Controlling Valves | liquid level controls |
| 2,591,614 | Apr. 01, 1952 | E.P. Sacrey | Rotary cutter head with slotted bit seats | router bits |
