3321888

Information

• Patent Grant
• 3321888

• References
• Source

• Patent Number

  3,321,888

• Date Filed

  Not available

• Date Issued

  Tuesday, May 30, 1967
  57 years ago

• CPC

  • B31B47/02 - for making envelopes or bags without preshaped bottoms
  • B31B2247/00 - Manual operations or hand tools for making bags or boxes

• US Classifications

  • 053 - Package making
  • 493 - Manufacturing container or tube from paper