3867177

Information

• Patent Grant
• 3867177

• References
• Source

• Patent Number

  3,867,177

• Date Filed

  Not available

• Date Issued

  Tuesday, February 18, 1975
  50 years ago

• CPC

  • B22D31/005 - Sealing or impregnating porous castings
  • B22D21/007 - with low melting point

• US Classifications

  • 427 - Coating processes
  • 164 - Metal founding