3747440

Information

• Patent Grant
• 3747440

• References
• Source

• Patent Number

  3,747,440

• Date Filed

  Not available

• Date Issued

  Tuesday, July 24, 1973
  51 years ago

• CPC

  • B21K5/20 - Making working faces of dies, either recessed or outstanding
  • Y10S29/023 - Method or apparatus with knurling
  • Y10S29/03 - Ornamenting with other step
  • Y10T29/49988 - Metal casting

• US Classifications

  • 076 - Metal tools and implements, making
  • 029 - Metal working
  • 264 - Plastic and nonmetallic article shaping or treating: processes