2570919

Information

• Patent Grant
• 2570919

• References
• Source

• Patent Number

  2,570,919

• Date Filed

  Not available

• Date Issued

  Tuesday, October 9, 1951
  73 years ago

• CPC

  • B21D28/28 - in tubes or other hollow bodies
  • Y10T83/384 - By tool inside hollow work
  • Y10T83/402 - With tool actuating cams on a common support
  • Y10T83/8727 - Plural tools selectively engageable with single drive

• US Classifications

  • 072 - Metal deforming
  • 083 - Cutting