3654989

Information

• Patent Grant
• 3654989

• References
• Source

• Patent Number

  3,654,989

• Date Filed

  Not available

• Date Issued

  Tuesday, April 11, 1972
  52 years ago

• CPC

  • B22D11/1243 - by using cooling grids or cooling plates

• US Classifications

  • 165 - Heat exchange
  • 164 - Metal founding