3808671

Information

• Patent Grant
• 3808671

• References
• Source

• Patent Number

  3,808,671

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1974
  50 years ago

• CPC

  • B22D21/007 - with low melting point
  • B22C9/061 - Materials which make up the mould
  • Y10T29/49977 - From center of ingot to leave hollow blank
  • Y10T29/49988 - Metal casting
  • Y10T29/49989 - Followed by cutting or removing material

• US Classifications

  • 029 - Metal working
  • 164 - Metal founding
  • 249 - Static molds