3481830

Information

• Patent Grant
• 3481830

• References
• Source

• Patent Number

  3,481,830

• Date Filed

  Not available

• Date Issued

  Tuesday, December 2, 1969
  56 years ago

• CPC

  • D21F11/12 - Making corrugated paper or board
  • B31F1/07 - Embossing , i.e. producing impressions formed by locally deep-drawing
  • B31F2201/0712 - Other than rollers
  • B31F2201/0715 - Rollers
  • B31F2201/0774 - Multiple successive embossing operations
  • B31F2201/0779 - Control

• US Classifications

  • 162 - Paper making and fiber liberation
  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 425 - Plastic article or earthenware shaping or treating: apparatus