3818974

Information

• Patent Grant
• 3818974

• References
• Source

• Patent Number

  3,818,974

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  50 years ago

• CPC

  • B22D13/063 - for dentistry or jewellery
  • B22D18/06 - Vacuum casting

• US Classifications

  • 164 - Metal founding
  • 065 - Glass manufacturing