| 2743495 | Method of making a composite cutter | |||
| 2174733 | Clad metal and method of making the same | |||
| 2151457 | Method of coating surfaces by thermal evaporation | |||
| 2003481 | Clad metal and process for producing the same | |||
| 1926770 | Production of castings having wearresistant inserts | |||
| 1110638 | N/A | |||
| 1043831 | N/A |