3919925

Information

• Patent Grant
• 3919925

• References
• Source

• Patent Number

  3,919,925

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1975
  49 years ago

• CPC

  • B31C1/00 - Forming tubes or pipes of paper or cardboard by feeding at right angles to the winding mandrel centre line
  • B31D3/005 - Making cellular structures from corrugated webs or sheets

• US Classifications

  • 493 - Manufacturing container or tube from paper