1780188

Information

• Patent Grant
• 1780188

• References
• Source

• Patent Number

  1,780,188

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1930
  94 years ago

• CPC

  • F22B37/204 - Supporting arrangements for individual tubes
  • F22G7/02 - in fire tubes

• US Classifications

  • 248 - Supports