1814697

Information

• Patent Grant
• 1814697

• References
• Source

• Patent Number

  1,814,697

• Date Filed

  Not available

• Date Issued

  Tuesday, July 14, 1931
  93 years ago

• CPC

  • B31C3/00 - Forming tubes or pipes of paper or cardboard by feeding obliquely to the winding mandrel centre line
  • B31F7/002 - tubular articles

• US Classifications

  • 493 - Manufacturing container or tube from paper