3921487

Information

• Patent Grant
• 3921487

• References
• Source

• Patent Number

  3,921,487

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1975
  50 years ago

• CPC

  • B26F1/02 - Perforating by punching
  • B26F1/32 - Hand-held perforating or punching apparatus
  • B26F1/36 - Punching or perforating pliers
  • Y10T83/766 - Spaced edges
  • Y10T83/8831 - Plural distinct cutting edges on same support
  • Y10T83/884 - By connecting rod articulated with tool support
  • Y10T83/8848 - Connecting rod articulated with tool support
  • Y10T83/885 - Fixed axis lever

• US Classifications

  • 083 - Cutting
  • D19 - Office supplies