3439731

Information

• Patent Grant
• 3439731

• References
• Source

• Patent Number

  3,439,731

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1969
  55 years ago

• CPC

  • B22D18/04 - Low pressure casting
  • B22D17/06 - air injection machines

• US Classifications

  • 164 - Metal founding
  • 228 - Metal fusion bonding