1807638

Information

• Patent Grant
• 1807638

• References
• Source

• Patent Number

  1,807,638

• Date Filed

  Not available

• Date Issued

  Tuesday, June 2, 1931
  93 years ago

• CPC

  • F28F19/002 - by using inserts or attachments
  • Y10S165/492 - Plural conduits with ends connected to tube plate

• US Classifications

  • 165 - Heat exchange