3776015

Information

• Patent Grant
• 3776015

• References
• Source

• Patent Number

  3,776,015

• Date Filed

  Not available

• Date Issued

  Tuesday, December 4, 1973
  52 years ago

• CPC

  • B21D53/02 - heat exchangers or parts thereof
  • B21D31/046 - making use of rotating cutters
  • F28F1/128 - Fins with openings
  • F28F2255/12 - expanded or perforated metal plate
  • Y10T29/18 - Expanded metal making
  • Y10T428/24314 - Slit or elongated

• US Classifications

  • 072 - Metal deforming
  • 029 - Metal working
  • 428 - Stock material or miscellaneous articles