3590548

Information

• Patent Grant
• 3590548

• References
• Source

• Patent Number

  3,590,548

• Date Filed

  Not available

• Date Issued

  Tuesday, July 6, 1971
  53 years ago

• CPC

  • B43M7/004 - including non-mechanical means
  • Y10S83/912 - Envelope openers
  • Y10T225/12 - With preliminary weakening
  • Y10T225/321 - Preliminary weakener
  • Y10T225/35 - Work-parting pullers [bursters]
  • Y10T225/393 - Web restrainer

• US Classifications

  • 053 - Package making
  • 034 - Drying and gas or vapor contact with solids
  • 083 - Cutting
  • 198 - Conveyors: power-driven
  • 225 - Severing by tearing or breaking
  • 414 - Material or article handling