3839974

Information

• Patent Grant
• 3839974

• References
• Source

• Patent Number

  3,839,974

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1974
  50 years ago

• CPC

  • B21D28/36 - using rotatable work or tool holders
  • B21D43/022 - Loop-control
  • B21D43/287 - Devices for handling sheet or strip material
  • Y10T83/094 - Running loop
  • Y10T83/533 - With photo-electric work-sensing means

• US Classifications

  • 072 - Metal deforming
  • 083 - Cutting