3868871

Information

• Patent Grant
• 3868871

• References
• Source

• Patent Number

  3,868,871

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1975
  49 years ago

• CPC

  • B21H3/025 - Rolling locking screws
  • B21K5/20 - Making working faces of dies, either recessed or outstanding

• US Classifications

  • 076 - Metal tools and implements, making
  • 072 - Metal deforming