3739670

Information

• Patent Grant
• 3739670

• References
• Source

• Patent Number

  3,739,670

• Date Filed

  Not available

• Date Issued

  Tuesday, June 19, 1973
  51 years ago

• CPC

  • B43M7/005 - with at least two cutting discs
  • Y10S83/912 - Envelope openers
  • Y10T83/446 - With means to initiate tool feed by same control impulse
  • Y10T83/544 - With trip-switch in work-sensing mechanism
  • Y10T83/7801 - Including means to rotate both elements at different speeds
  • Y10T83/7813 - Tool pair elements angularly related
  • Y10T83/7834 - With means to effect axial pressure on pair
  • Y10T83/7843 - With means to change overlap of discs

• US Classifications

  • 083 - Cutting