1822777

Information

• Patent Grant
• 1822777

• References
• Source

• Patent Number

  1,822,777

• Date Filed

  Not available

• Date Issued

  Tuesday, September 8, 1931
  93 years ago

• CPC

  • F23D5/18 - Preheating devices

• US Classifications

  • 251 - Valves and valve actuation