3839934

Information

• Patent Grant
• 3839934

• References
• Source

• Patent Number

  3,839,934

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1974
  50 years ago

• CPC

  • B21D43/021 - Control or correction devices in association with moving strips
  • B23D36/0066 - and taking account of marks
  • Y10T83/091 - Responsive to work sensing means
  • Y10T83/446 - With means to initiate tool feed by same control impulse
  • Y10T83/527 - With means to control work-responsive signal system
  • Y10T83/533 - With photo-electric work-sensing means
  • Y10T83/543 - Sensing means responsive to work indicium or irregularity

• US Classifications

  • 083 - Cutting