2788840

Information

• Patent Grant
• 2788840

• References
• Source

• Patent Number

  2,788,840

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1957
  67 years ago

• CPC

  • B31F1/205 - Corrugating tubes
  • B29C53/60 - using internal forming surfaces
  • B31C3/00 - Forming tubes or pipes of paper or cardboard by feeding obliquely to the winding mandrel centre line
  • Y10T156/102 - with deformation or cutting of corrugated lamina

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture