1999246

Information

• Patent Grant
• 1999246

• References
• Source

• Patent Number

  1,999,246

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1935
  89 years ago

• CPC

  • F28F9/268 - by permanent joints
  • F28F2240/00 - Spacing means
  • Y10T29/49373 - Tube joint and tube plate structure
  • Y10T29/49911 - by expanding inner annulus
  • Y10T29/4994 - Radially expanding internal tube

• US Classifications

  • 165 - Heat exchange
  • 029 - Metal working