1984728

Information

• Patent Grant
• 1984728

• References
• Source

• Patent Number

  1,984,728

• Date Filed

  Not available

• Date Issued

  Tuesday, December 18, 1934
  90 years ago

• CPC

  • B21K1/22 - poppet valves
  • F01L3/02 - Selecting particular materials for valve-members or valve-seats Valve-members or valve-seats composed of two or more materials
  • F01L3/14 - by means of a liquid or solid coolant
  • Y10T29/49309 - including forging
  • Y10T29/49313 - including casting

• US Classifications

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