3871339

Information

• Patent Grant
• 3871339

• References
• Source

• Patent Number

  3,871,339

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1975
  49 years ago

• CPC

  • F01L3/20 - Shapes or constructions of valve members, not provided for in preceding subgroups of this group
  • F01L3/18 - Liquid cooling of valve
  • F01L2103/00 - Manufacturing of components used in valve arrangements
  • Y10T29/49307 - Composite or hollow valve stem or head making
  • Y10T29/49863 - with prestressing of part

• US Classifications

  • 123 - Internal-combustion engines
  • 029 - Metal working
  • 228 - Metal fusion bonding