1720353

Information

• Patent Grant
• 1720353

• References
• Source

• Patent Number

  1,720,353

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1929
  97 years ago

• CPC

  • F01L1/14 - Tappets Push rods
  • Y10S148/902 - having portions of differing metallurgical properties or characteristics
  • Y10S164/13 - Valve
  • Y10T29/49304 - Valve tappet making

• US Classifications

  • 123 - Internal-combustion engines
  • 029 - Metal working
  • 148 - Metal treatment
  • 164 - Metal founding
  • 251 - Valves and valve actuation