1399503

Information

• Patent Grant
• 1399503

• References
• Source

• Patent Number

  1,399,503

• Date Filed

  Not available

• Date Issued

  Tuesday, December 6, 1921
  104 years ago

• CPC

  • F27B7/20 - Details, accessories, or equipment peculiar to rotary-drum furnaces
  • Y10S165/141 - Concentric flow confining structures or chambers

• US Classifications

  • 165 - Heat exchange
  • 034 - Drying and gas or vapor contact with solids
  • 138 - Pipes and tubular conduits