249978

Information

• Patent Grant
• 249978

• References
• Source

• Patent Number

  249,978

• Date Filed

  Not available

• Date Issued

  Tuesday, November 22, 1881
  143 years ago

• CPC

  • F28D11/02 - the movement being rotary
  • Y10S165/142 - Jacketed shell

• US Classifications

  • 165 - Heat exchange
  • 034 - Drying and gas or vapor contact with solids