1867163

Information

• Patent Grant
• 1867163

• References
• Source

• Patent Number

  1,867,163

• Date Filed

  Not available

• Date Issued

  Tuesday, July 12, 1932
  92 years ago

• CPC

  • F28F21/04 - of ceramic of concrete of natural stone
  • Y10S165/412 - including transverse element

• US Classifications

  • 165 - Heat exchange
  • 048 - Gas: heating and illuminating
  • 110 - Furnaces
  • 122 - Liquid heaters and vaporizers