3499481

Information

• Patent Grant
• 3499481

• References
• Source

• Patent Number

  3,499,481

• Date Filed

  Not available

• Date Issued

  Tuesday, March 10, 1970
  55 years ago

• CPC

  • F01P11/0238 - with overpressure valves or vent valves
  • F01P11/0285 - Venting devices
  • Y10S165/004 - Sight glass

• US Classifications

  • 165 - Heat exchange
  • 123 - Internal-combustion engines
  • 237 - Heating systems