3683438

Information

• Patent Grant
• 3683438

• References
• Source

• Patent Number

  3,683,438

• Date Filed

  Not available

• Date Issued

  Tuesday, August 15, 1972
  52 years ago

• CPC

  • F16B37/002 - cutting threads during screwing; removing paint or dirt layers covering threaded shanks
  • B21K1/64 - nuts

• US Classifications

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