3919878

Information

• Patent Grant
• 3919878

• References
• Source

• Patent Number

  3,919,878

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1975
  49 years ago

• CPC

  • B30B15/042 - Prestressed frames
  • B30B15/041 - Guides
  • Y10T29/49863 - with prestressing of part

• US Classifications

  • 072 - Metal deforming
  • 029 - Metal working