3792770

Information

• Patent Grant
• 3792770

• References
• Source

• Patent Number

  3,792,770

• Date Filed

  Not available

• Date Issued

  Tuesday, February 19, 1974
  50 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
  • Y10T225/246 - Including special support for wound supply package

• US Classifications

  • 242 - Winding, tensioning, or guiding
  • 206 - Special receptacle or package
  • 225 - Severing by tearing or breaking