2165128

Information

• Patent Grant
• 2165128

• References
• Source

• Patent Number

  2,165,128

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1939
  85 years ago

• CPC

  • F27B7/04 - with longitudinal divisions
  • F27B7/162 - the projections consisting of separate lifting elements
  • F27B2007/022 - the drum having a non-uniform section along its length
  • F27B2007/041 - Longitudinal tubes
  • F27B2007/165 - forming a helical lifting projection

• US Classifications

  • 432 - Heating