3474712

Information

• Patent Grant
• 3474712

• References
• Source

• Patent Number

  3,474,712

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1969
  55 years ago

• CPC

  • B31B21/00 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents, from sheets or blanks
  • B31B19/26 - and having means for folding sheets, blanks, or webs
  • B31B2219/2672 - involving transversely folding
  • B31B2221/10 - the bags having no structural provision at the base for thickness of content
  • Y10S493/917 - Envelope

• US Classifications

  • 493 - Manufacturing container or tube from paper