3768130

Information

• Patent Grant
• 3768130

• References
• Source

• Patent Number

  3,768,130

• Date Filed

  Not available

• Date Issued

  Tuesday, October 30, 1973
  51 years ago

• CPC

  • B21D47/02 - by expanding
  • E04C3/32 - of metal
  • Y10T29/49631 - Columnar member

• US Classifications

  • 029 - Metal working