3857438

Information

• Patent Grant
• 3857438

• References
• Source

• Patent Number

  3,857,438

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1974
  50 years ago

• CPC

  • B22D7/12 - Appurtenances

• US Classifications

  • 164 - Metal founding
  • 249 - Static molds