443201

Information

• Patent Grant
• 443201

• References
• Source

• Patent Number

  443,201

• Date Filed

  Not available

• Date Issued

  Tuesday, December 23, 1890
  134 years ago

• CPC

  • F28D11/02 - the movement being rotary
  • Y10S165/144 - Helical

• US Classifications

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