| Patents Granted on 1957-01-01 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 2,775,787 | Jan. 01, 1957 | F.S. Krag | Apparatus for the manufacture of hardboard | |
| 2,775,818 | Jan. 01, 1957 | F. Meyer, Jr. | Fluid Gage Apparatus | pneumatic measuring gauges |
| 2,775,914 | Jan. 01, 1957 | J.J. Deliso | Socket Wrench Set | socket wrenches |
| 2,775,915 | Jan. 01, 1957 | D.C. De Ford | Key mechanism for musical instruments | musical instruments |
| 2,776,003 | Jan. 01, 1957 | F. Koster | Method and Apparatus for Cutting Tubing | pipe and tube notchers |
| 2,776,038 | Jan. 01, 1957 | H.F. Caldwell | Label machine feeding and timing mechanism | |
