3850018

Information

• Patent Grant
• 3850018

• References
• Source

• Patent Number

  3,850,018

• Date Filed

  Not available

• Date Issued

  Tuesday, November 26, 1974
  50 years ago

• CPC

  • B21D53/08 - of both metal tubes and sheet metal
  • B21D13/04 - by rolling
  • B21D53/025 - Louvered fins

• US Classifications

  • 072 - Metal deforming