2821727

Information

• Patent Grant
• 2821727

• References
• Source

• Patent Number

  2,821,727

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1958
  67 years ago

• CPC

  • B21G3/32 - Feeding material to be worked to nail or pin making machines
  • B21B1/163 - Rolling or cold-forming of concrete reinforcement bars or wire ; Rolls therefor
  • B21B1/42 - for step-by-step or planetary rolling
  • B21B2001/081 - Roughening or texturing surfaces of structural sections, bars, rounds, wire rods
  • B21B2015/0028 - Drawing the rolled product
  • B21H7/14 - knurled articles

• US Classifications

  • 470 - Threaded, headed fastener, or washer making: process and apparatus
  • 072 - Metal deforming