3022968

Information

• Patent Grant
• 3022968

• References
• Source

• Patent Number

  3,022,968

• Date Filed

  Not available

• Date Issued

  Tuesday, February 27, 1962
  63 years ago

• CPC

  • C21D7/04 - of the surface
  • E01B7/12 - Fixed frogs made of one part or composite
  • Y10T29/49758 - During simulated operation or operating conditions

• US Classifications

  • 246 - Railway switches and signals
  • 029 - Metal working
  • 072 - Metal deforming
  • 238 - Railways: surface track