2452628

Information

• Patent Grant
• 2452628

• References
• Source

• Patent Number

  2,452,628

• Date Filed

  Not available

• Date Issued

  Tuesday, November 2, 1948
  76 years ago

• CPC

  • B21C23/183 - by forward extrusion
  • B21K1/22 - poppet valves
  • F01L3/14 - by means of a liquid or solid coolant
  • Y10T29/49311 - including extruding

• US Classifications

  • 029 - Metal working
  • 072 - Metal deforming
  • 123 - Internal-combustion engines