3734450

Information

• Patent Grant
• 3734450

• References
• Source

• Patent Number

  3,734,450

• Date Filed

  Not available

• Date Issued

  Tuesday, May 22, 1973
  51 years ago

• CPC

  • B28B21/88 - adjustable, collapsible or expansible
  • B22C9/106 - Vented or reinforced cores

• US Classifications

  • 249 - Static molds
  • 072 - Metal deforming