1710997

Information

• Patent Grant
• 1710997

• References
• Source

• Patent Number

  1,710,997

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1929
  95 years ago

• CPC

  • B21K1/20 - valve parts
  • Y10S164/13 - Valve
  • Y10T29/49304 - Valve tappet making
  • Y10T29/49307 - Composite or hollow valve stem or head making

• US Classifications

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